adjkerntz(8) on FreeBSD
The text f78b0bfa7d99, as FreeBSD 14.5-RELEASE, FreeBSD 14.4-RELEASE, FreeBSD 14.3-RELEASE, FreeBSD 14.2-RELEASE, FreeBSD 14.1-RELEASE, FreeBSD 14.0-RELEASE, FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE, FreeBSD 13.3-RELEASE shipped it.
adjust the local time CMOS clock to reflect time zone changes and keep the current timezone offset for the kernel
Flags it lists
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-a -
-i