this post was submitted on 28 Mar 2024
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timedatectl will tell you if your system time matches the rtc time on your motherboard. Could be the rtc is wrong (or failed) and the system is updating via ntp.
hwclock -w can write the current system time to the rtc. If the battery is dead it wouldn’t help.
I just got home. You're right that it's using NTP. I went into BIOS and checked system time and it was 1h behind so I corrected it. timedatectl shows that system clock sync is OFF so I used hwclock --systohc command to sync with system clock and will see if that causes any issues. If it wont work then I'll try to just stick with your way of doing it. But thanks for letting me know about the hwclock command.
Thanks, will look at it when I get home. Battery is fine