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Dual boot Windows time inconsistency #27

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opened 2024-06-10 19:22:21 +02:00 by Benjamin_Loison · 42 comments
Benjamin_Loison commented 2024-06-10 19:22:21 +02:00
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sudo date -s "$(wget -qSO- --max-redirect=0 duckduckgo.com 2>&1 | grep Date: | cut -d' ' -f5-8)Z"

Source: Stack Exchange

is a workaround.

man date
Output: 
       -s, --set=STRING
              set time described by STRING

man wget
Output: 
...
       -O file
       --output-document=file
           The documents will not be written to the appropriate files, but all
           will be concatenated together and written to file.  If - is used as
           file, documents will be printed to standard output, disabling  link
           conversion.  (Use ./- to print to a file literally named -.)

           Use of -O is not intended to mean simply "use the name file instead
           of  the  one  in  the  URL;"  rather,  it  is  analogous  to  shell
           redirection: wget -O file http://foo is intended to work like  wget
           -O - http://foo > file; file will be truncated immediately, and all
           downloaded content will be written there.

           For  this  reason,  -N (for timestamp-checking) is not supported in
           combination with -O: since file is always newly  created,  it  will
           always  have a very new timestamp. A warning will be issued if this
           combination is used.

           Similarly, using -r or -p with -O may not work as you expect:  Wget
           won't  just  download  the first file to file and then download the
           rest to their normal names: all downloaded content will  be  placed
           in file. This was disabled in version 1.11, but has been reinstated
           (with  a  warning)  in  1.11.2,  as there are some cases where this
           behavior can actually have some use.

           A combination with -nc is only accepted if the  given  output  file
           does not exist.

           Note  that a combination with -k is only permitted when downloading
           a single document, as  in  that  case  it  will  just  convert  all
           relative URIs to external ones; -k makes no sense for multiple URIs
           when  they're all being downloaded to a single file; -k can be used
           only when the output is a regular file.
...
       -S
       --server-response
           Print the headers sent by HTTP servers and responses  sent  by  FTP
           servers.
...
       -q
       --quiet
           Turn off Wget's output.
...

Tracked at Benjamin_Loison/windows/issues/14.

+108

```bash sudo date -s "$(wget -qSO- --max-redirect=0 duckduckgo.com 2>&1 | grep Date: | cut -d' ' -f5-8)Z" ``` Source: Stack Exchange is a workaround. ```bash man date ``` <details> <summary>Output:</summary> ``` -s, --set=STRING set time described by STRING ``` </details> ```bash man wget ``` <details> <summary>Output:</summary> ``` ... -O file --output-document=file The documents will not be written to the appropriate files, but all will be concatenated together and written to file. If - is used as file, documents will be printed to standard output, disabling link conversion. (Use ./- to print to a file literally named -.) Use of -O is not intended to mean simply "use the name file instead of the one in the URL;" rather, it is analogous to shell redirection: wget -O file http://foo is intended to work like wget -O - http://foo > file; file will be truncated immediately, and all downloaded content will be written there. For this reason, -N (for timestamp-checking) is not supported in combination with -O: since file is always newly created, it will always have a very new timestamp. A warning will be issued if this combination is used. Similarly, using -r or -p with -O may not work as you expect: Wget won't just download the first file to file and then download the rest to their normal names: all downloaded content will be placed in file. This was disabled in version 1.11, but has been reinstated (with a warning) in 1.11.2, as there are some cases where this behavior can actually have some use. A combination with -nc is only accepted if the given output file does not exist. Note that a combination with -k is only permitted when downloading a single document, as in that case it will just convert all relative URIs to external ones; -k makes no sense for multiple URIs when they're all being downloaded to a single file; -k can be used only when the output is a regular file. ... -S --server-response Print the headers sent by HTTP servers and responses sent by FTP servers. ... -q --quiet Turn off Wget's output. ... ``` </details> Tracked at [Benjamin_Loison/windows/issues/14](https://codeberg.org/Benjamin_Loison/windows/issues/14). +108
Benjamin_Loison commented 2024-06-17 15:20:20 +02:00
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I executed above command while being connected to Shotbow and got after about an hour:

image

Happened again when I send a chat message (commands at least).

I executed above command while being connected to Shotbow and got after about an hour: ![image](/attachments/de4440c5-f8c4-498b-b991-ff6c7c2e2dd5) Happened again when I send a chat message (commands at least).
image.png
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Benjamin_Loison commented 2024-09-30 22:39:04 +02:00
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Without sudo:

date: cannot set date: Operation not permitted
Without `sudo`: ``` date: cannot set date: Operation not permitted ```
Benjamin_Loison commented 2024-10-02 16:56:18 +02:00
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Cannot the server return an arbitrary value, hence run as root an arbitrary command? Maybe not thanks to "$(...)".

Cannot the server return an arbitrary value, hence run as `root` an arbitrary command? Maybe not thanks to `"$(...)"`.
Benjamin_Loison commented 2024-10-03 23:56:53 +02:00
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Related to Benjamin-Loison/gitea/issues/117.

Related to [Benjamin-Loison/gitea/issues/117](https://github.com/Benjamin-Loison/gitea/issues/117).
Benjamin_Loison commented 2024-10-04 22:18:54 +02:00
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Maybe related to Benjamin-Loison/gitea/issues/118.

Maybe related to [Benjamin-Loison/gitea/issues/118](https://github.com/Benjamin-Loison/gitea/issues/118).
Benjamin_Loison commented 2024-10-20 19:45:17 +02:00
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Related to Benjamin_Loison/Debian/issues/81.

Related to [Benjamin_Loison/Debian/issues/81](https://codeberg.org/Benjamin_Loison/Debian/issues/81).
Benjamin_Loison commented 2024-12-01 19:10:27 +01:00
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Maybe face a similar issue on my Debian 12 GNOME work laptop as it has a Windows 11 and Ubuntu 24.04.1 as well.

date

Sun Dec  1 08:06:43 PM CET 2024

while on my Fairphone 4 Termux:

date

Sun Dec  1 19:08:38 CET 2024

sudo date -s "$(wget -qSO- --max-redirect=0 duckduckgo.com 2>&1 | grep Date: | cut -d' ' -f5-8)Z"

Sun Dec  1 07:10:00 PM CET 2024

date

Sun Dec  1 07:10:18 PM CET 2024

as far as I experienced it does not hold for long.

Maybe face a similar issue on my Debian 12 GNOME work laptop as it has a Windows 11 and Ubuntu 24.04.1 as well. ```bash date ``` ``` Sun Dec 1 08:06:43 PM CET 2024 ``` while on my Fairphone 4 Termux: ``` date ``` ``` Sun Dec 1 19:08:38 CET 2024 ``` ```bash sudo date -s "$(wget -qSO- --max-redirect=0 duckduckgo.com 2>&1 | grep Date: | cut -d' ' -f5-8)Z" ``` ``` Sun Dec 1 07:10:00 PM CET 2024 ``` ```bash date ``` ``` Sun Dec 1 07:10:18 PM CET 2024 ``` as far as I experienced it does not hold for long.
Benjamin_Loison commented 2024-12-02 01:14:27 +01:00
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I enabled Automatic Time Zone and manually correct Date & Time again, let us see if the see issue is raised again at some point.

I enabled *Automatic Time Zone* and manually correct *Date & Time* again, let us see if the see issue is raised again at some point.
Benjamin_Loison commented 2024-12-03 11:43:47 +01:00
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I also suspects 2 minutes time shift making TOTP not work. wget command solves the issue.

I also suspects 2 minutes time shift making TOTP not work. `wget` command solves the issue.
Benjamin_Loison commented 2024-12-04 15:55:00 +01:00
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I have one hour shift again.

I have one hour shift again.
Benjamin_Loison commented 2025-01-08 13:43:52 +01:00
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Just rebooting my Debian 12 GNOME work laptop seems to lead to the issue.

While already have:

Screenshot from 2025-01-08 12-44-15

Just rebooting my Debian 12 GNOME work laptop seems to lead to the issue. While already have: ![Screenshot from 2025-01-08 12-44-15](/attachments/8950f092-f53c-4df4-9f61-a31237311fd0)
Screenshot from 2025-01-08 12-44-15.png
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Benjamin_Loison commented 2025-01-12 00:54:16 +01:00
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I had to check my phone to ensure the time was correctly set (it was).

I had to check my phone to ensure the time was correctly set (it was).
Benjamin_Loison commented 2025-01-21 17:07:31 +01:00
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Does not seem related to secure boot as seems to have the issue on both states, related to Benjamin-Loison/cinnamon/issues/178 and Benjamin-Loison/obs-studio/issues/24.

Let us verify if Ubuntu and Windows also face the issue, let us update them as I do not regularly use them.
Have to reboot them to be accurate I would say.
Unlocking session may help. Waiting Internet access may be appropriate.

No issue on Ubuntu.
Face the same issue on Windows but may have BitLocker recovery bias, as have disabled secure boot I guess.

Maybe will have to dig BIOS.

Should try to firmware update from Debian or Ubuntu.

Does not seem related to secure boot as seems to have the issue on both states, related to [Benjamin-Loison/cinnamon/issues/178](https://github.com/Benjamin-Loison/cinnamon/issues/178) and [Benjamin-Loison/obs-studio/issues/24](https://github.com/Benjamin-Loison/obs-studio/issues/24). Let us verify if Ubuntu and Windows also face the issue, let us update them as I do not regularly use them. Have to reboot them to be accurate I would say. Unlocking session may help. Waiting Internet access may be appropriate. No issue on Ubuntu. Face the same issue on Windows but may have *BitLocker recovery* bias, as have disabled secure boot I guess. Maybe will have to dig BIOS. Should try to firmware update from Debian or Ubuntu.
Benjamin_Loison commented 2025-01-21 17:11:23 +01:00
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To be on time for work it is a very important issue.

To be on time for work it is a very important issue.
Benjamin_Loison commented 2025-01-21 17:38:46 +01:00
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fwupdmgr update
Output: 
Devices with no available firmware updates: 
 • HP 5MP Camera
 • UEFI Device Firmware
 • UEFI Device Firmware
 • UEFI Device Firmware
 • UEFI dbx
 • WD PC SN810 SDCPNRY-1T00-1406
Devices with the latest available firmware version:
 • System Firmware

on Debian 12 GNOME.

sudo does not help.

```bash fwupdmgr update ``` <details> <summary>Output:</summary> ``` Devices with no available firmware updates: • HP 5MP Camera • UEFI Device Firmware • UEFI Device Firmware • UEFI Device Firmware • UEFI dbx • WD PC SN810 SDCPNRY-1T00-1406 Devices with the latest available firmware version: • System Firmware ``` </details> on Debian 12 GNOME. `sudo` does not help.
Benjamin_Loison commented 2025-01-22 14:22:16 +01:00
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https://duckduckgo.com/?t=ftsa&q=CET+time&ia=web
https://time.is/UTC+1

both above state 14:21.

Screenshot from 2025-01-22 13-21-03.png

https://duckduckgo.com/?t=ftsa&q=CET+time&ia=web https://time.is/UTC+1 both above state 14:21. ![Screenshot from 2025-01-22 13-21-03.png](/attachments/64479133-1faf-4c83-be75-0b924d05994e)
Screenshot from 2025-01-22 13-21-03.png
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Benjamin_Loison commented 2025-01-22 14:24:15 +01:00
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Screenshot from 2025-01-22 13-22-45.png

may be a workaround.

Well can set it along automatic time zone, let us restart to check.

Screenshot from 2025-01-22 14-23-26.png

![Screenshot from 2025-01-22 13-22-45.png](/attachments/d08d5502-2450-495b-b879-3715cbd9259e) may be a workaround. Well can set it along automatic time zone, let us restart to check. ![Screenshot from 2025-01-22 14-23-26.png](/attachments/6bc79b04-64a1-4c6b-b086-e8cf5f93fc04)
Screenshot from 2025-01-22 13-22-45.png
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Screenshot from 2025-01-22 14-23-26.png
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Benjamin_Loison commented 2025-01-22 14:26:30 +01:00
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I still have correct time (14:25) after reboot.

I still have correct time (14:25) after reboot.
Benjamin_Loison commented 2025-01-22 23:53:21 +01:00
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It ended up at some point (possibly with reboots) no more being at the right time again.

It ended up at some point (possibly with reboots) no more being at the right time again.
Benjamin_Loison commented 2025-01-23 14:51:10 +01:00
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DuckDuckGo search *Debian incorrect time while correct time zone *.

DuckDuckGo search *Debian incorrect time while correct time zone *.
Benjamin_Loison commented 2025-01-23 14:53:37 +01:00
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sudo dpkg-reconfigure tzdata
Output:

Screenshot from 2025-01-23 15-51-29.png

Screenshot from 2025-01-23 15-51-38.png

Current default time zone: 'Europe/Paris'
Local time is now:      Thu 23 Jan 15:52:04 CET 2025.
Universal Time is now:  Thu Jan 23 14:52:04 UTC 2025.

same output (including prompts) if execute again.

```bash sudo dpkg-reconfigure tzdata ``` <details> <summary>Output:</summary> ![Screenshot from 2025-01-23 15-51-29.png](/attachments/fc57f91a-9ac3-48d3-9f53-87ae5d6154de) ![Screenshot from 2025-01-23 15-51-38.png](/attachments/b1e49d03-610b-483f-8f49-a70dc663f780) ``` Current default time zone: 'Europe/Paris' Local time is now: Thu 23 Jan 15:52:04 CET 2025. Universal Time is now: Thu Jan 23 14:52:04 UTC 2025. ``` </details> same output (including prompts) if execute again.
Screenshot from 2025-01-23 15-51-29.png
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Screenshot from 2025-01-23 15-51-38.png
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Benjamin_Loison commented 2025-01-23 14:56:47 +01:00
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ntpdate pool.ntp.org
Output: 
Command 'ntpdate' not found, but can be installed with:
sudo apt install ntpsec-ntpdate

Source: the Unix Stack Exchange answer 273113

sudo apt install -y ntpsec-ntpdate
Output: 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  ntpsec-ntpdig python3-ntp
The following NEW packages will be installed:
  ntpsec-ntpdate ntpsec-ntpdig python3-ntp
0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
Need to get 150 kB of archives.
After this operation, 536 kB of additional disk space will be used.
Get:1 http://ftp.fr.debian.org/debian bookworm/main amd64 python3-ntp amd64 1.2.2+dfsg1-1+deb12u1 [88.9 kB]
Get:2 http://ftp.fr.debian.org/debian bookworm/main amd64 ntpsec-ntpdig amd64 1.2.2+dfsg1-1+deb12u1 [31.9 kB]
Get:3 http://ftp.fr.debian.org/debian bookworm/main amd64 ntpsec-ntpdate amd64 1.2.2+dfsg1-1+deb12u1 [29.0 kB]
Fetched 150 kB in 0s (361 kB/s)            
Selecting previously unselected package python3-ntp.
(Reading database ... 392043 files and directories currently installed.)
Preparing to unpack .../python3-ntp_1.2.2+dfsg1-1+deb12u1_amd64.deb ...
Unpacking python3-ntp (1.2.2+dfsg1-1+deb12u1) ...
Selecting previously unselected package ntpsec-ntpdig.
Preparing to unpack .../ntpsec-ntpdig_1.2.2+dfsg1-1+deb12u1_amd64.deb ...
Unpacking ntpsec-ntpdig (1.2.2+dfsg1-1+deb12u1) ...
Selecting previously unselected package ntpsec-ntpdate.
Preparing to unpack .../ntpsec-ntpdate_1.2.2+dfsg1-1+deb12u1_amd64.deb ...
Unpacking ntpsec-ntpdate (1.2.2+dfsg1-1+deb12u1) ...
Setting up python3-ntp (1.2.2+dfsg1-1+deb12u1) ...
Setting up ntpsec-ntpdig (1.2.2+dfsg1-1+deb12u1) ...
Setting up ntpsec-ntpdate (1.2.2+dfsg1-1+deb12u1) ...
Processing triggers for man-db (2.11.2-2) ...

ntpdate pool.ntp.org

2025-01-23 14:54:07.125559 (+0100) -3580.351680 +/- 0.016534 pool.ntp.org 82.64.45.50 s1 no-leap
CLOCK: step_systime: Operation not permitted

sudo ntpdate pool.ntp.org

2025-01-23 14:54:10.994883 (+0100) -3580.344012 +/- 0.022797 pool.ntp.org 82.64.45.50 s1 no-leap
CLOCK: time stepped by -3580.344012

corrects the time.
Let us verify that it holds a reboot.

Maybe no more having battery is involved.

```bash ntpdate pool.ntp.org ``` <details> <summary>Output:</summary> ``` Command 'ntpdate' not found, but can be installed with: sudo apt install ntpsec-ntpdate ``` </details> Source: [the Unix Stack Exchange answer 273113](https://unix.stackexchange.com/a/273113) ```bash sudo apt install -y ntpsec-ntpdate ``` <details> <summary>Output:</summary> ``` Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: ntpsec-ntpdig python3-ntp The following NEW packages will be installed: ntpsec-ntpdate ntpsec-ntpdig python3-ntp 0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded. Need to get 150 kB of archives. After this operation, 536 kB of additional disk space will be used. Get:1 http://ftp.fr.debian.org/debian bookworm/main amd64 python3-ntp amd64 1.2.2+dfsg1-1+deb12u1 [88.9 kB] Get:2 http://ftp.fr.debian.org/debian bookworm/main amd64 ntpsec-ntpdig amd64 1.2.2+dfsg1-1+deb12u1 [31.9 kB] Get:3 http://ftp.fr.debian.org/debian bookworm/main amd64 ntpsec-ntpdate amd64 1.2.2+dfsg1-1+deb12u1 [29.0 kB] Fetched 150 kB in 0s (361 kB/s) Selecting previously unselected package python3-ntp. (Reading database ... 392043 files and directories currently installed.) Preparing to unpack .../python3-ntp_1.2.2+dfsg1-1+deb12u1_amd64.deb ... Unpacking python3-ntp (1.2.2+dfsg1-1+deb12u1) ... Selecting previously unselected package ntpsec-ntpdig. Preparing to unpack .../ntpsec-ntpdig_1.2.2+dfsg1-1+deb12u1_amd64.deb ... Unpacking ntpsec-ntpdig (1.2.2+dfsg1-1+deb12u1) ... Selecting previously unselected package ntpsec-ntpdate. Preparing to unpack .../ntpsec-ntpdate_1.2.2+dfsg1-1+deb12u1_amd64.deb ... Unpacking ntpsec-ntpdate (1.2.2+dfsg1-1+deb12u1) ... Setting up python3-ntp (1.2.2+dfsg1-1+deb12u1) ... Setting up ntpsec-ntpdig (1.2.2+dfsg1-1+deb12u1) ... Setting up ntpsec-ntpdate (1.2.2+dfsg1-1+deb12u1) ... Processing triggers for man-db (2.11.2-2) ... ``` </details> ```bash ntpdate pool.ntp.org ``` ``` 2025-01-23 14:54:07.125559 (+0100) -3580.351680 +/- 0.016534 pool.ntp.org 82.64.45.50 s1 no-leap CLOCK: step_systime: Operation not permitted ``` ```bash sudo ntpdate pool.ntp.org ``` ``` 2025-01-23 14:54:10.994883 (+0100) -3580.344012 +/- 0.022797 pool.ntp.org 82.64.45.50 s1 no-leap CLOCK: time stepped by -3580.344012 ``` corrects the time. Let us verify that it holds a reboot. Maybe no more having battery is involved.
Benjamin_Loison commented 2025-01-23 15:05:28 +01:00
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It holds a reboot.

It holds a reboot.
Benjamin_Loison commented 2025-01-24 09:18:31 +01:00
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I still have the issue after some time...

I still have the issue after some time...
Benjamin_Loison commented 2025-01-24 14:37:17 +01:00
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It's now a 2 hours time shift...

It's now a 2 hours time shift...
Benjamin_Loison commented 2025-01-26 16:29:55 +01:00
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To be able to investigate when the time shift occurs, let us add to crontab:

# [Benjamin_Loison/linux/issues/27](https://gitea.lemnoslife.com/Benjamin_Loison/linux/issues/27)
* * * * * date +%s >> date.txt

should then make an algorithm to detect significant shift.

To be able to investigate when the time shift occurs, let us add to `crontab`: ``` # [Benjamin_Loison/linux/issues/27](https://gitea.lemnoslife.com/Benjamin_Loison/linux/issues/27) * * * * * date +%s >> date.txt ``` should then make an algorithm to detect significant shift.
Benjamin_Loison commented 2025-01-27 14:22:57 +01:00
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How to be notified in real-time when the issue happens? Could leverage an always running server notifying if notice an offset of more than half an hour. This should not lead to false alarms as the time on resuming from suspension should be correct as tested but it happens sometimes to be incorrect.

How to be notified in real-time when the issue happens? Could leverage an always running server notifying if notice an offset of more than half an hour. This should not lead to false alarms as the time on resuming from suspension should be correct as tested but it happens sometimes to be incorrect.
Benjamin_Loison commented 2025-01-27 14:23:22 +01:00
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Could add ntpdate to visudo, done:

benjamin_loison ALL = (root) NOPASSWD: /usr/sbin/ntpdate pool.ntp.org
Could add `ntpdate` to `visudo`, done: ``` benjamin_loison ALL = (root) NOPASSWD: /usr/sbin/ntpdate pool.ntp.org ```
Benjamin_Loison commented 2025-02-04 11:48:18 +01:00
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Can somehow get time of motherboard, see Wikipedia: Real-time clock? Which should be stable without OS change.

Can somehow get time of motherboard, see [Wikipedia: Real-time clock](https://en.wikipedia.org/wiki/Real-time_clock)? Which should be stable without OS change.
Benjamin_Loison commented 2025-02-06 14:10:20 +01:00
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With Proton VPN at Amsterdam:

Screenshot from 2025-02-06 14-09-39.png

I received a notification that time has changed.

With Proton VPN at Amsterdam: ![Screenshot from 2025-02-06 14-09-39.png](/attachments/b74a6568-634f-4045-9d4e-e80296e74e24) I received a notification that time has changed.
Screenshot from 2025-02-06 14-09-39.png
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Benjamin_Loison commented 2025-02-06 14:45:24 +01:00
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image.png

![image.png](/attachments/d253cb20-46d2-4059-9e26-d691ea34762c)
image.png
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Benjamin_Loison commented 2025-02-21 13:26:55 +01:00
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Involve Improve_websites_thanks_to_open_source/issues/1157.

Involve [Improve_websites_thanks_to_open_source/issues/1157](https://codeberg.org/Benjamin_Loison/Improve_websites_thanks_to_open_source/issues/1157).
Benjamin_Loison commented 2025-02-22 12:06:58 +01:00
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Debian 12 GNOME host and guest Virtual Machine Manager virtual machine is not realtime updated on ntpdate on host.

Debian 12 GNOME host and guest Virtual Machine Manager virtual machine is not realtime updated on `ntpdate` on host.
Benjamin_Loison commented 2025-03-11 11:34:01 +01:00
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Related to Benjamin_Loison/gnome-control-center/issues/37.

Related to [Benjamin_Loison/gnome-control-center/issues/37](https://gitlab.gnome.org/Benjamin_Loison/gnome-control-center/-/issues/37).
Benjamin_Loison commented 2025-04-01 16:31:09 +02:00
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Due to 30/03/25 daylight saving time may solve the issue but it seems that the shift is now of 2 hours and potentially no more just late but also in the future.

Due to 30/03/25 daylight saving time may solve the issue but it seems that the shift is now of 2 hours and potentially no more just late but also in the future.
Benjamin_Loison commented 2025-04-17 00:07:43 +02:00
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Involves the issue Benjamin-Loison/gitea/issues/175#issuecomment-2810923495.

Involves the issue [Benjamin-Loison/gitea/issues/175#issuecomment-2810923495](https://github.com/Benjamin-Loison/gitea/issues/175#issuecomment-2810923495).
Benjamin_Loison commented 2025-06-05 12:49:40 +02:00
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Maybe related to Benjamin_Loison/linux/issues/27.

Maybe related to [Benjamin_Loison/linux/issues/27](https://gitea.lemnoslife.com/Benjamin_Loison/linux/issues/27).
Benjamin_Loison commented 2025-08-12 13:30:44 +02:00
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I have read Wikipedia: Ntpdate (1300646220)

The accuracy and reliability of ntpdate entirely depends on the accuracy and network link stability of the first server it connects with. As this inaccuracy can lead to a multitude of problems, the maintainers have decided to deprecate it in favor of only using the ntpd (network time protocol daemon) or a sntp (simple network time protocol) query.[2]

I have read [Wikipedia: Ntpdate (1300646220)](https://en.wikipedia.org/w/index.php?title=Ntpdate&oldid=1300646220) > The accuracy and reliability of `ntpdate` entirely depends on the accuracy and network link stability of the first server it connects with. As this inaccuracy can lead to a multitude of problems, the maintainers have decided to deprecate it in favor of only using the [`ntpd`](https://en.wikipedia.org/wiki/Ntpd) (network time protocol daemon) or a [`sntp`](https://en.wikipedia.org/wiki/SNTP) (simple network time protocol) query.[2]
Benjamin_Loison commented 2025-08-12 13:31:19 +02:00
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The Ask Ubuntu answer 256004:

[The Ask Ubuntu answer 256004](https://askubuntu.com/a/256004):
Benjamin_Loison commented 2025-08-12 13:36:38 +02:00
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On my Debian 13 GNOME:

sudo apt install ntp
Output: 
Package ntp is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  openntpd  ntpsec


Error: Package 'ntp' has no installation candidate

sudo apt install -y ntpsec
Output: 
Installing:                     
  ntpsec

Installing dependencies:
  python3-ntp

Suggested packages:
  certbot  ntpsec-doc  ntpsec-ntpviz

Summary:
  Upgrading: 0, Installing: 2, Removing: 0, Not Upgrading: 3
  Download size: 437 kB
  Space needed: 1,298 kB / 12.6 GB available

Get:1 http://ftp.fr.debian.org/debian trixie/main amd64 python3-ntp amd64 1.2.3+dfsg1-8 [90.8 kB]
Get:2 http://ftp.fr.debian.org/debian trixie/main amd64 ntpsec amd64 1.2.3+dfsg1-8 [346 kB]
Fetched 437 kB in 0s (3,805 kB/s)
Selecting previously unselected package python3-ntp.
(Reading database ... 703319 files and directories currently installed.)
Preparing to unpack .../python3-ntp_1.2.3+dfsg1-8_amd64.deb ...
Unpacking python3-ntp (1.2.3+dfsg1-8) ...
Selecting previously unselected package ntpsec.
Preparing to unpack .../ntpsec_1.2.3+dfsg1-8_amd64.deb ...
Unpacking ntpsec (1.2.3+dfsg1-8) ...
Setting up python3-ntp (1.2.3+dfsg1-8) ...
Setting up ntpsec (1.2.3+dfsg1-8) ...
Created symlink '/etc/systemd/system/timers.target.wants/ntpsec-rotate-stats.timer' \u2192 '/usr/lib/systemd/system/ntpsec-rotate-stats.timer'.
Created symlink '/etc/systemd/system/network-pre.target.wants/ntpsec-systemd-netif.path' \u2192 '/usr/lib/systemd/system/ntpsec-systemd-netif.pat
h'.
Created symlink '/etc/systemd/system/ntp.service' \u2192 '/usr/lib/systemd/system/ntpsec.service'.
Created symlink '/etc/systemd/system/ntpd.service' \u2192 '/usr/lib/systemd/system/ntpsec.service'.
Created symlink '/etc/systemd/system/multi-user.target.wants/ntpsec.service' \u2192 '/usr/lib/systemd/system/ntpsec.service'.
Processing triggers for man-db (2.13.1-1) ...
Scanning processes...                                                                                                                       
Scanning candidates...                                                                                                                      
Scanning linux images...                                                                                                                    

Restarting services...
Service restarts being deferred:
 /etc/needrestart/restart.d/dbus.service
 systemctl restart docker.service
 systemctl restart gdm.service
 systemctl restart lxcfs.service
 systemctl restart systemd-logind.service
 systemctl restart unattended-upgrades.service

No containers need to be restarted.

User sessions running outdated binaries:
 benjamin_loison @ session #2: gdm-session-wor[2481], gdm-wayland-ses[2583]
 benjamin_loison @ user manager: at-spi-bus-laun[2737], at-spi2-registr[2948], (sd-pam)[2503], spice-vdagent[3034]
 benjamin_loison @ user service: dbus.service[2541,2756,2786,2911,2947,3071,3073], dconf.service[60353],
  evolution-addressbook-factory.service[3134], evolution-calendar-factory.service[3012], evolution-source-registry.service[2917],
  gcr-ssh-agent.service[2692], gnome-keyring-daemon.service[2540], gnome-session-manager@gnome.service[2707],
  gnome-session-monitor.service[2694], gnome-terminal-server.service[3473], gpa.service[2531], gvfs-afc-volume-monitor.service[2849],
  gvfs-daemon.service[2548,2561], gvfs-goa-volume-monitor.service[2752], gvfs-gphoto2-volume-monitor.service[2830],
  gvfs-metadata.service[5717], gvfs-mtp-volume-monitor.service[2841], gvfs-udisks2-volume-monitor.service[2731],
  org.freedesktop.IBus.session.GNOME.service[2970,2976], org.gnome.SettingsDaemon.A11ySettings.service[2973],
  org.gnome.SettingsDaemon.Color.service[2977], org.gnome.SettingsDaemon.Datetime.service[2979],
  org.gnome.SettingsDaemon.Housekeeping.service[2980], org.gnome.SettingsDaemon.Keyboard.service[2982],
  org.gnome.SettingsDaemon.MediaKeys.service[2983], org.gnome.SettingsDaemon.Power.service[2985],
  org.gnome.SettingsDaemon.PrintNotifications.service[2986,3088], org.gnome.SettingsDaemon.Rfkill.service[2989],
  org.gnome.SettingsDaemon.ScreensaverProxy.service[2994], org.gnome.SettingsDaemon.Sharing.service[2997],
  org.gnome.SettingsDaemon.Smartcard.service[2999], org.gnome.SettingsDaemon.Sound.service[3001],
  org.gnome.SettingsDaemon.UsbProtection.service[3002], org.gnome.SettingsDaemon.Wacom.service[3003],
  org.gnome.SettingsDaemon.XSettings.service[3290,3326], org.gnome.Shell@wayland.service[2736], pipewire-pulse.service[2535],
  pipewire.service[2532], ssh-agent.service[2695], tracker-miner-fs-3.service[2655], wireplumber.service[2534],
  xdg-desktop-portal-gnome.service[3411], xdg-desktop-portal-gtk.service[3441], xdg-desktop-portal.service[3392],
  xdg-document-portal.service[3401], xdg-permission-store.service[2909]

No VM guests are running outdated hypervisor (qemu) binaries on this host.
On my Debian 13 GNOME: ``` sudo apt install ntp ``` <details> <summary>Output:</summary> ``` Package ntp is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: openntpd ntpsec Error: Package 'ntp' has no installation candidate ``` </details> ``` sudo apt install -y ntpsec ``` <details> <summary>Output:</summary> ``` Installing: ntpsec Installing dependencies: python3-ntp Suggested packages: certbot ntpsec-doc ntpsec-ntpviz Summary: Upgrading: 0, Installing: 2, Removing: 0, Not Upgrading: 3 Download size: 437 kB Space needed: 1,298 kB / 12.6 GB available Get:1 http://ftp.fr.debian.org/debian trixie/main amd64 python3-ntp amd64 1.2.3+dfsg1-8 [90.8 kB] Get:2 http://ftp.fr.debian.org/debian trixie/main amd64 ntpsec amd64 1.2.3+dfsg1-8 [346 kB] Fetched 437 kB in 0s (3,805 kB/s) Selecting previously unselected package python3-ntp. (Reading database ... 703319 files and directories currently installed.) Preparing to unpack .../python3-ntp_1.2.3+dfsg1-8_amd64.deb ... Unpacking python3-ntp (1.2.3+dfsg1-8) ... Selecting previously unselected package ntpsec. Preparing to unpack .../ntpsec_1.2.3+dfsg1-8_amd64.deb ... Unpacking ntpsec (1.2.3+dfsg1-8) ... Setting up python3-ntp (1.2.3+dfsg1-8) ... Setting up ntpsec (1.2.3+dfsg1-8) ... Created symlink '/etc/systemd/system/timers.target.wants/ntpsec-rotate-stats.timer' \u2192 '/usr/lib/systemd/system/ntpsec-rotate-stats.timer'. Created symlink '/etc/systemd/system/network-pre.target.wants/ntpsec-systemd-netif.path' \u2192 '/usr/lib/systemd/system/ntpsec-systemd-netif.pat h'. Created symlink '/etc/systemd/system/ntp.service' \u2192 '/usr/lib/systemd/system/ntpsec.service'. Created symlink '/etc/systemd/system/ntpd.service' \u2192 '/usr/lib/systemd/system/ntpsec.service'. Created symlink '/etc/systemd/system/multi-user.target.wants/ntpsec.service' \u2192 '/usr/lib/systemd/system/ntpsec.service'. Processing triggers for man-db (2.13.1-1) ... Scanning processes... Scanning candidates... Scanning linux images... Restarting services... Service restarts being deferred: /etc/needrestart/restart.d/dbus.service systemctl restart docker.service systemctl restart gdm.service systemctl restart lxcfs.service systemctl restart systemd-logind.service systemctl restart unattended-upgrades.service No containers need to be restarted. User sessions running outdated binaries: benjamin_loison @ session #2: gdm-session-wor[2481], gdm-wayland-ses[2583] benjamin_loison @ user manager: at-spi-bus-laun[2737], at-spi2-registr[2948], (sd-pam)[2503], spice-vdagent[3034] benjamin_loison @ user service: dbus.service[2541,2756,2786,2911,2947,3071,3073], dconf.service[60353], evolution-addressbook-factory.service[3134], evolution-calendar-factory.service[3012], evolution-source-registry.service[2917], gcr-ssh-agent.service[2692], gnome-keyring-daemon.service[2540], gnome-session-manager@gnome.service[2707], gnome-session-monitor.service[2694], gnome-terminal-server.service[3473], gpa.service[2531], gvfs-afc-volume-monitor.service[2849], gvfs-daemon.service[2548,2561], gvfs-goa-volume-monitor.service[2752], gvfs-gphoto2-volume-monitor.service[2830], gvfs-metadata.service[5717], gvfs-mtp-volume-monitor.service[2841], gvfs-udisks2-volume-monitor.service[2731], org.freedesktop.IBus.session.GNOME.service[2970,2976], org.gnome.SettingsDaemon.A11ySettings.service[2973], org.gnome.SettingsDaemon.Color.service[2977], org.gnome.SettingsDaemon.Datetime.service[2979], org.gnome.SettingsDaemon.Housekeeping.service[2980], org.gnome.SettingsDaemon.Keyboard.service[2982], org.gnome.SettingsDaemon.MediaKeys.service[2983], org.gnome.SettingsDaemon.Power.service[2985], org.gnome.SettingsDaemon.PrintNotifications.service[2986,3088], org.gnome.SettingsDaemon.Rfkill.service[2989], org.gnome.SettingsDaemon.ScreensaverProxy.service[2994], org.gnome.SettingsDaemon.Sharing.service[2997], org.gnome.SettingsDaemon.Smartcard.service[2999], org.gnome.SettingsDaemon.Sound.service[3001], org.gnome.SettingsDaemon.UsbProtection.service[3002], org.gnome.SettingsDaemon.Wacom.service[3003], org.gnome.SettingsDaemon.XSettings.service[3290,3326], org.gnome.Shell@wayland.service[2736], pipewire-pulse.service[2535], pipewire.service[2532], ssh-agent.service[2695], tracker-miner-fs-3.service[2655], wireplumber.service[2534], xdg-desktop-portal-gnome.service[3411], xdg-desktop-portal-gtk.service[3441], xdg-desktop-portal.service[3392], xdg-document-portal.service[3401], xdg-permission-store.service[2909] No VM guests are running outdated hypervisor (qemu) binaries on this host. ``` </details>
Benjamin_Loison commented 2025-08-12 13:36:50 +02:00
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sudo apt install -y ntpdate
Output: 
Package ntpdate is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  ntpsec-ntpdate


Error: Package 'ntpdate' has no installation candidate
``` sudo apt install -y ntpdate ``` <details> <summary>Output:</summary> ``` Package ntpdate is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: ntpsec-ntpdate Error: Package 'ntpdate' has no installation candidate ``` </details>
Benjamin_Loison commented 2025-08-12 13:37:36 +02:00
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sudo ntpd -gq

sudo: ntpd: command not found

sudo apt install -y ntpd

Error: Unable to locate package ntpd

ntpd

bash: ntpd: command not found
``` sudo ntpd -gq ``` ``` sudo: ntpd: command not found ``` ``` sudo apt install -y ntpd ``` ``` Error: Unable to locate package ntpd ``` ``` ntpd ``` ``` bash: ntpd: command not found ```
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