timedatectl

기본 형식

timedatectl
      Local time: Wed 2023-02-22 10:58:15 JST
  Universal time: Wed 2023-02-22 01:58:15 UTC
        RTC time: Wed 2023-02-22 01:58:16
       Time zone: Asia/Tokyo (JST, +0900)
     NTP enabled: yes
NTP synchronized: yes
 RTC in local TZ: no
      DST active: n/a

타임존 변경

timedatectl set-timezone Asia/Seoul

# 타임존 리스트 확인
timedatectl list-timezones