How to fix Linux/Windows dual boot clock shift


You have a dual-boot system. Every time you reboot from Linux to Windows, the time is shifted by several hours.


On Linux, run

sudo timedatectl set-local-rtc 1

This will configure Linux to store local time in the RTC.

See this StackOverflow post for alternate solutions


Both Linux and Windows use the hardware clock (RTC – Real time clock) integrated into the computer hardware. However, Windows assumes that the RTC stores local time by default whereas Linux assumes the RTC stores UTC time.