Time is not correct, but the time zone appears to be set properly

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If the clock is several hours off, but accurate to the minute, it is most likely a time zone setting issue. If using a GMT offset time (e.g. -0500), try using a more specific geographic time zone such as America/New_York instead.

Processes on FreeBSD (and thus pfSense) only pick up time changes when they are started. If the firewall has not been rebooted since the last time zone change, doing so will ensure that all running processes are using the correct time zone.