[SOLVED] Windows and Linux Time settings are conflicting

BenKenoobi · 12-29-2018, 01:53 PM

I have dual booted Debian 8 "Jessie" and Windows 10 pro 64 bit.
I have set the timezones correctly in both the OSes.

When I set the time in Linux to "UTC+x" then the BIOS time is set as "UTC".
However, setting the time in Windows to "UTC+x" sets BIOS time to "UTC+x".

Hence, setting the current time in Linux leads to the windows time getting set behind by "-x".
Conversely, setting the current time in Windows leads to the linux time getting set ahead by "+x".

How do I make the BIOS time equal to the Linux time (without subtracting the "x") ?

BW-userx · 12-29-2018, 02:05 PM

localtime, set both, or use that internet time settings for your linux so every time you boot into it and it links up to the net it will update your time to current time off the time server.

BenKenoobi · 12-29-2018, 02:12 PM

Quote:

Originally Posted by BW-userx

localtime, set both, or use that internet time settings for your linux so every time you boot into it and it links up to the net it will update your time to current time off the time server.

So to set it to Local Time I set my timezone as London ?

Also, I have currently enabled "auto-sync". Is that the internet time settings you are referring to ?

BW-userx · 12-29-2018, 02:35 PM

Quote:

Originally Posted by BenKenoobi

So to set it to Local Time I set my timezone as London ?

Also, I have currently enabled "auto-sync". Is that the internet time settings you are referring to ?

yes and yes

whatever zone you are in, set windows to local time, and linux to local time, then you have to adjust them, and a few reboots between the two to see if they are not interfearing, or that the time stays the same.

systemd

Code:

sudo timedatectl list-timezones
sudo timedatectl set-timezone London/London
sudo timedatectl set-time "2013-08-11 23:56:16"

To change the hardware clock time standard to localtime, use:

# timedatectl set-local-rtc 1

To revert to the hardware clock being in UTC, type:

# timedatectl set-local-rtc 0

other than systemd

Code:

sudo date +%T -s 3:30pm
sudo hwclock -w

https://www.wikihow.com/Change-the-Timezone-in-Linux
for more information, as I have to edit a file to set it for local time as well. so it depends on the Distro if not systemD.

In Windows you have to go into they time setup too, and tell it local time.

BenKenoobi · 12-31-2018, 04:48 PM

Quote:

To change the hardware clock time standard to localtime, use:

# timedatectl set-local-rtc 1

To revert to the hardware clock being in UTC, type:

# timedatectl set-local-rtc 0

This did the trick.
Setting local-rtc to 1 results in Debian reading/ writing the time "as is", which matches the setting in Windows.
Thanks !!

BW-userx · 12-31-2018, 06:19 PM

NP, Now even your PC will be on time for New Years!!!!

Happy New Years!

BenKenoobi · 01-01-2019, 03:35 AM

Thanks !!
A very happy new year to you too !!!!