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[python] 파이썬 시간 관련 함수, time() datetime() timezone()코딩 연습/코딩배우기 2020. 9. 8. 11:44반응형
파이썬 웹 사이트 개발 연습 중, UI에 표시할 날짜와 시간을 어떻게 표시할 지 고민했는데, 파이썬 시간 관련 함수인 time(), datetime(), timezone()을 사용하면 얼마든지 만들어 사용할 수 있었다.
pytz 라이브러리는 pip로 설치하고 사용해야한다.
# pip install pytz from pytz import common_timezones, timezone from datetime import datetime from time import time, localtime, gmtime, ctime print(datetime.today()) # 2020-09-08 11:27:41.561416 print(datetime.now()) # 2020-09-08 11:27:41.561416 print('한국시간 :', datetime.now().strftime('%Y-%m-%d %H:%M:%S')) # 한국시간 : 2020-09-08 11:27:41 print(datetime.now().strftime('%Y-%m-%d')) # 2020-09-08 print('한국시간 :', datetime.today().strftime('%Y-%m-%d %H:%M:%S')) # 한국시간 : 2020-09-08 11:27:41 print(datetime.today().strftime('%Y-%m-%d')) # 2020-09-08 KST = datetime.now(timezone('Asia/Seoul')) # Korea Standard Time print('한국시간 :', KST.strftime('%Y-%m-%d %H:%M:%S')) # 한국시간 : 2020-09-08 11:27:41 print(KST.strftime('%Y-%m-%d')) # 2020-09-08 print(time()) # 1599532061.5614164 print(localtime(time())) # ==gmtime(time()) # time.struct_time(tm_year=2020, tm_mon=9, tm_mday=8, tm_hour=11, tm_min=27, # tm_sec=41, tm_wday=1, tm_yday=252, tm_isdst=0) # time_struct 클래스 # tm_wday는 요일(월요일~일요일, 0~6), tm_yday는 1월 1일부터 경과한 일수, tm_isdst는 서머타임 여부 # 날짜/시간 형식 만들기 t = localtime(time()) wk_list = ['월', '화', '수', '목', '금', '토', '일'] wk = None print(type(t.tm_wday)) # <class 'int'> for n in range(len(wk_list)): if n == t.tm_wday: wk = wk_list[n] print('{}.{}.{}({}) {}:{}:{}'.format(t.tm_year, t.tm_mon, t.tm_mday,\ wk, t.tm_hour, t.tm_min, t.tm_sec)) # 2020.9.8(화) 11:27:41 print(ctime(time())) # Tue Sep 8 11:27:41 2020 tz_list = ['Asia/Seoul', 'Africa/Casablanca', 'America/Chicago', 'America/Costa_Rica',\ 'America/Mexico_City', 'America/New_York',\ 'America/Chicago', 'America/Costa_Rica', 'America/Mexico_City',\ 'America/New_York', 'America/Santiago', 'Asia/Bangkok',\ 'Asia/Hong_Kong', 'Asia/Pyongyang', 'Asia/Singapore',\ 'Asia/Taipei', 'Asia/Tokyo', 'Australia/Melbourne',\ 'Australia/Sydney', 'Canada/Atlantic', 'Canada/Mountain',\ 'Europe/Berlin', 'Europe/Helsinki', 'Europe/London',\ 'Europe/Luxembourg', 'Europe/Paris', 'Europe/Rome', 'Europe/Vienna',\ 'Pacific/Fiji', 'Pacific/Honolulu', 'Pacific/Saipan', 'US/Alaska',\ 'US/Hawaii'] for tz in tz_list: wtime = datetime.now(timezone(tz)) print('{}: {}'.format(tz, wtime.strftime('%Y-%m-%d %H:%M:%S'))) # ==================전 세계 국가도시======================== # for tz in common_timezones: # world_time = datetime.now(timezone(tz)) # print('{}: {}'.format(tz, world_time.strftime(fmt))) # =========================================================
------------------------------------------------------------------- for tz in tz_list: wtime = datetime.now(timezone(tz)) print('{}: {}'.format(tz, wtime.strftime('%Y-%m-%d %H:%M:%S'))) ------------------------------------------------------------------- 위 for문 출력 결과 Asia/Seoul: 2020-09-08 11:32:40 Africa/Casablanca: 2020-09-08 03:32:40 America/Chicago: 2020-09-07 21:32:40 America/Costa_Rica: 2020-09-07 20:32:40 America/Mexico_City: 2020-09-07 21:32:40 America/New_York: 2020-09-07 22:32:40 America/Chicago: 2020-09-07 21:32:40 America/Costa_Rica: 2020-09-07 20:32:40 America/Mexico_City: 2020-09-07 21:32:40 America/New_York: 2020-09-07 22:32:40 America/Santiago: 2020-09-07 23:32:40 Asia/Bangkok: 2020-09-08 09:32:40 Asia/Hong_Kong: 2020-09-08 10:32:40 Asia/Pyongyang: 2020-09-08 11:32:40 Asia/Singapore: 2020-09-08 10:32:40 Asia/Taipei: 2020-09-08 10:32:40 Asia/Tokyo: 2020-09-08 11:32:40 Australia/Melbourne: 2020-09-08 12:32:40 Australia/Sydney: 2020-09-08 12:32:40 Canada/Atlantic: 2020-09-07 23:32:40 Canada/Mountain: 2020-09-07 20:32:40 Europe/Berlin: 2020-09-08 04:32:40 Europe/Helsinki: 2020-09-08 05:32:40 Europe/London: 2020-09-08 03:32:40 Europe/Luxembourg: 2020-09-08 04:32:40 Europe/Paris: 2020-09-08 04:32:40 Europe/Rome: 2020-09-08 04:32:40 Europe/Vienna: 2020-09-08 04:32:40 Pacific/Fiji: 2020-09-08 14:32:40 Pacific/Honolulu: 2020-09-07 16:32:40 Pacific/Saipan: 2020-09-08 12:32:40 US/Alaska: 2020-09-07 18:32:40 US/Hawaii: 2020-09-07 16:32:40
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