ntpd

The official NTP (Network Time Protocol) daemon to synchronize the system clock to remote time servers or local reference clocks. More information: https://manned.org/ntpd.

• Start the daemon:

sudo ntpd

• Synchronize system time with remote servers a single time (quit after synchronizing):

sudo ntpd --quit

• Synchronize a single time allowing "Big" adjustments:

sudo ntpd --panicgate --quit