Python常用时间转换

  1 import time
  2 import math
  3
  4 # 定义一些时间段的常量（秒）
  5 TimeSec_Hour = 3600
  6 TimeSec_Day = 86400
  7 TimeSec_Week = 604800
  8 TimeSec_Month = 2592000
  9 TimeSec_Year = 31536000
 10
 11
 12 def timestampToSec(timestamp):
 13     if timestampIsMS(timestamp):
 14         return round(timestamp / 1000)
 15     else:
 16         return timestamp
 17
 18
 19 def timestampToMS(timestamp):
 20     if timestampIsMS(timestamp):
 21         return timestamp
 22     else:
 23         return timestamp * 1000
 24
 25
 26 def timestampIsMS(timestamp):
 27     return timestamp > 1000000000000
 28
 29
 30 def formatDuration(duration, ms=False):
 31     if ms:
 32         duration = round(duration / 60)
 33     sec = duration % 60
 34     minute = math.floor((duration % 3600) / 60)
 35     hour = math.floor((duration % 86400) / 3600)
 36     day = math.floor(duration / 86400)
 37     if day > 0:
 38         ret = ''.join([str(day), "天"])
 39         if hour > 0:
 40             ret = ''.join([ret, str(hour), "小时"])
 41     elif hour > 0:
 42         ret = ''.join([str(hour), "小时"])
 43         if minute > 0:
 44             ret = ''.join([ret, str(minute), "分钟"])
 45     elif minute > 0:
 46         ret = ''.join([str(minute), "分钟"])
 47         if sec > 0:
 48             ret = ''.join([ret, str(sec), "秒"])
 49     else:
 50         ret = ''.join([str(sec), '秒'])
 51     return ret
 52
 53
 54 def datetimeFormat(timestamp, ms=False):
 55     if ms:
 56         timestamp = int(timestamp / 1000)
 57     timeArray = time.localtime(timestamp)
 58     return time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
 59
 60
 61 def datetimestrFormat(timestamp, ms=False):
 62     if ms:
 63         timestamp = int(timestamp / 1000)
 64     timeArray = time.localtime(timestamp)
 65     return time.strftime("%Y%m%d%H%M%S", timeArray)
 66
 67
 68 def dateFormat(timestamp, ms=False):
 69     if ms:
 70         timestamp = int(timestamp / 1000)
 71     timeArray = time.localtime(timestamp)
 72     return time.strftime("%Y-%m-%d", timeArray)
 73
 74
 75 def timeFormat(formatString, timestamp, ms=False):
 76     if ms:
 77         timestamp = int(timestamp / 1000)
 78     timeArray = time.localtime(timestamp)
 79     return time.strftime(formatString, timeArray)
 80
 81
 82 def datetimeToStamp(timeString, ms=False):
 83     timeArray = time.strptime(timeString, "%Y-%m-%d %H:%M:%S")
 84     ret = int(time.mktime(timeArray))
 85     if ms:
 86         ret = ret * 1000
 87     return ret
 88
 89
 90 def dateToStamp(dateString, ms=False):
 91     try:
 92         timeArray = time.strptime(dateString, "%Y-%m-%d")
 93         ret = int(time.mktime(timeArray))
 94     except ValueError:
 95         ret = 0
 96     if ms:
 97         ret = ret * 1000
 98     return ret
 99
100
101 def getTimestamp(ms=False):
102     if ms:
103         return int(round(time.time() * 1000))
104     else:
105         return int(time.time())
106
107
108 def getDayStart(timestamp=0, ms=False):
109     if timestamp == 0:
110         timestamp = int(time.time())
111     elif ms:
112         timestamp = int(timestamp / 1000)
113     midnight = dateToStamp(dateFormat(timestamp))
114     if ms:
115         midnight = midnight * 1000
116     return midnight
117
118
119 def getDayEnd(timestamp=0, ms=False):
120     if ms:
121         timestamp = int(timestamp / 1000)
122     ret = getDayStart(timestamp) + 86399
123     if ms:
124         ret = ret * 1000 + 999
125     return ret
126
127
128 def datetime_format_utc(timestamp):
129     return time.strftime("%Y-%m-%dT%H:%M:%SZ", timestamp)

以上是常用的时间封装