Translations:System time/7/en
From Gentoo Wiki
The time for hardware clock can be modified to represent localtime or Coordinated Universal Time (UTC). UTC is preferred because it is independent from the time zone and DST. Exceptions can be made when using a dual-boot system — when the other operating system is not configured to interpret the hardware clock as UTC, such as Windows (this can be changed — see section Dual booting with Windows).