systemd-timesyncd というのを使う
man.kusakata.com
確認方法
timedatectl
# timedatectl Local time: Thu 2022-12-01 10:28:15 JST Universal time: Thu 2022-12-01 01:28:15 UTC RTC time: Thu 2022-12-01 01:28:15 Time zone: Asia/Tokyo (JST, +0900) System clock synchronized: yes NTP service: active RTC in local TZ: no