时间模块
time模块
获取秒级时间戳、毫秒级时间戳、微秒级时间戳
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import timet = time.time()print t # 原始时间数据 1574502460.90print int(t) # 秒级时间戳：10位 1574502460print int(round(t * 1000)) # 毫秒级时间戳：13位 1574502460904print int(round(t * 1000000)) # 微秒级时间戳：16位 1574502460903997 |
格式化日期与秒级时间戳之间的转换
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import time# 将日期转为秒级时间戳dt = '2019-08-08 10:00:00'ts = int(time.mktime(time.strptime(dt, "%Y-%m-%d %H:%M:%S")))print ts # 结果：1565229600 # 将秒级时间戳转为日期ts = 1565229600dt = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(ts))print dt # 结果：2019-08-08 10:00:00 # 将当前秒级时间戳转为日期，下面两种写法的结果是一样的ct = time.strftime('%Y-%m-%d %H:%M:%S')ct = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))print ct, type(ct) # 结果：2019-11-25 09:45:09 <type 'str'> |
转结构体时间struct_time
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# 日期时间转结构体ta_dt = time.strptime("2019-11-25 10:20:50", '%Y-%m-%d %H:%M:%S') print ta_dt # time.struct_time(tm_year=2019, tm_mon=11, tm_mday=25, tm_hour=10, tm_min=20, tm_sec=50, tm_wday=0, tm_yday=329, tm_isdst=-1)# 时间戳转结构体，注意时间戳要求为int，也可以不带参数：ta_ms = time.localtime()ta_ms = time.localtime(1574648450) print ta_ms # time.struct_time(tm_year=2019, tm_mon=11, tm_mday=25, tm_hour=10, tm_min=20, tm_sec=50, tm_wday=0, tm_yday=329, tm_isdst=0)print ta_ms[0], ta_ms[1], ta_ms[2], ta_ms[3], ta_ms[4], ta_ms[5] |
其他用法
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print time.time() # 结果：1574655005.15，现在距离计算机元年过去了多少秒。print time.ctime() # 结果：Mon Nov 25 12:10:05 2019print time.sleep(3) # 结果：程序运行到这儿，暂停3秒，休眠3秒。 print time.asctime((2019,5,7,20,8,8,6,3,1)) # 结果：Sun May 7 20:08:08 2019 print time.mktime((2019,5,9,20,8,8,0,0,0)) # 结果：1557403688.0 print time.gmtime(7200) # 结果：time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=2, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0) print time.gmtime(1557403688) # 结果：time.struct_time(tm_year=2019, tm_mon=5, tm_mday=9, tm_hour=12, tm_min=8, tm_sec=8, tm_wday=3, tm_yday=129, tm_isdst=0) print time.localtime(1557403688.0) # 结果：time.struct_time(tm_year=2019, tm_mon=5, tm_mday=9, tm_hour=20, tm_min=8, tm_sec=8, tm_wday=3, tm_yday=129, tm_isdst=0) print time.localtime() # 结果：time.struct_time(tm_year=2019, tm_mon=11, tm_mday=25, tm_hour=12, tm_min=10, tm_sec=8, tm_wday=0, tm_yday=329, tm_isdst=0) |
datetime模块
dateutil模块
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from dateutil.parser import parset1 = parse('2019-10-01 10:10:10')t2 = parse('2019-10-01/10:10:10')t3 = parse('2019/12/01 10:10:10')t4 = parse('2019/12/01/10:10:10')print t1, type(t1) # 2019-10-01 10:10:10 <type 'datetime.datetime'>print t2, type(t2) # 2019-10-01 10:10:10 <type 'datetime.datetime'>print t3, type(t3) # 2019-12-01 10:10:10 <type 'datetime.datetime'>print (t3-t1).days # 61print (t3-t1).seconds # 0print (t3-t1).total_seconds() # 5270400.0 |
转：https://www.cnblogs.com/liuhaidon/p/11670208.html