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官網(wǎng)時(shí)間格式說(shuō)明:https://docs.python.org/3/library/datetime.html#strftime-strptime-behavior
導(dǎo)入模塊:from datetime import datetime
查看系統(tǒng)當(dāng)前時(shí)間
now = datetime.now() print (now)
運(yùn)行結(jié)果:
2018-07-27 15:19:50
cday = datetime.strptime('2016-6-1 18:19:59', '%Y-%m-%d %H:%M:%S') print (cday)
運(yùn)行結(jié)果:
2016-06-01 18:19:59
now = datetime.now() print(now.strftime('%a, %b %d %H:%M'))
運(yùn)行結(jié)果:
Fri, Jul 27 03:56
from datetime import datetime, timedelta now = datetime.now() print (now) delta_add = now + timedelta(days = 3, hours=10, minutes = 1) print(delta_add) delta_add = now - timedelta(days = 1, hours=10, minutes = 1) print(delta_add)
運(yùn)行結(jié)果:
2018-07-27 04:01:57.861809 2018-07-30 14:02:57.861809 2018-07-25 18:00:57.861809
from datetime import datetime, timedelta, timezone tz_utc_8 = timezone(timedelta(hours=8)) # 創(chuàng)建時(shí)區(qū)UTC+8:00 print (tz_utc_8) now = datetime.now() print (now)
運(yùn)行結(jié)果:
UTC+08:00 2018-07-29 03:27:01.248631
dt = now.replace(tzinfo=tz_utc_8) # 強(qiáng)制設(shè)置為UTC+8:00 print (dt)
運(yùn)行結(jié)果:
2018-07-29 03:27:01.248631+08:00
utc_dt = datetime.utcnow().replace(tzinfo=timezone.utc) # 拿到UTC時(shí)間,并強(qiáng)制設(shè)置時(shí)區(qū)為UTC+0:00: print(utc_dt) bj_dt = utc_dt.astimezone(timezone(timedelta(hours=8))) # astimezone()將轉(zhuǎn)換時(shí)區(qū)為北京時(shí)間 print(bj_dt) tokyo_dt = bj_dt.astimezone(timezone(timedelta(hours=9))) # astimezone()將bj_dt轉(zhuǎn)換時(shí)區(qū)為東京時(shí)間: print(tokyo_dt)
運(yùn)行結(jié)果:
2018-07-29 03:42:40.795549+00:00 2018-07-29 11:42:40.795549+08:00 2018-07-29 12:42:40.795549+09:00
小結(jié):
時(shí)區(qū)轉(zhuǎn)換一定要用帶有UTC時(shí)區(qū)的時(shí)間進(jìn)行轉(zhuǎn)換。
時(shí)區(qū)轉(zhuǎn)換可以不從+00:00的基礎(chǔ)時(shí)區(qū)轉(zhuǎn)換,可以從其他帶有UTC時(shí)區(qū)的時(shí)間轉(zhuǎn)換,如:bj_dt-->tokyo_dt,但要確保前面時(shí)間的時(shí)區(qū)是正確的
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