zoneinfo 에서 서울 Timezone 존재 여부 확인 Seoul 이 있는지 아래와 같이 확인 root@e72a1af519d5:/# ls -al /usr/share/zoneinfo/Asia/ Aden Chongqing Jerusalem Novokuznetsk Tbilisi Almaty Chungking Kabul Novosibirsk Tehran Amman Colombo Kamchatka Omsk Tel_Aviv Anadyr Dacca Karachi Oral Thimbu Aqtau Damascus Kashgar Phnom_Penh Thimphu Aqtobe Dhaka Kathmandu Pontianak Tokyo Ashgabat Dili Katmandu Pyongyang Tomsk Ashkhabad ..