한국 타임존 변경 $ sudo timedatectl set-timezone Asia/Seoul 변경 확인 $ timedatectl Local time: Tue 2022-09-27 20:18:36 KST Universal time: Tue 2022-09-27 11:18:36 UTC RTC time: Tue 2022-09-27 11:18:37 Time zone: Asia/Seoul (KST, +0900) NTP enabled: yes NTP synchronized: yes RTC in local TZ: no DST active: n/a