我有一个Python datetime对象,我想将其转换为unix时间,或自1970 epoch以来的秒/毫秒。
我怎么做呢?
我有一个Python datetime对象,我想将其转换为unix时间,或自1970 epoch以来的秒/毫秒。
我怎么做呢?
当前回答
from datetime import datetime
from calendar import timegm
# Note: if you pass in a naive dttm object it's assumed to already be in UTC
def unix_time(dttm=None):
if dttm is None:
dttm = datetime.utcnow()
return timegm(dttm.utctimetuple())
print "Unix time now: %d" % unix_time()
print "Unix timestamp from an existing dttm: %d" % unix_time(datetime(2014, 12, 30, 12, 0))
其他回答
from datetime import datetime
from calendar import timegm
# Note: if you pass in a naive dttm object it's assumed to already be in UTC
def unix_time(dttm=None):
if dttm is None:
dttm = datetime.utcnow()
return timegm(dttm.utctimetuple())
print "Unix time now: %d" % unix_time()
print "Unix timestamp from an existing dttm: %d" % unix_time(datetime(2014, 12, 30, 12, 0))
import time
seconds_since_epoch = time.mktime(your_datetime.timetuple()) * 1000
Python 2.7文档对time模块的建议
我是这样做的:
from datetime import datetime
from time import mktime
dt = datetime.now()
sec_since_epoch = mktime(dt.timetuple()) + dt.microsecond/1000000.0
millis_since_epoch = sec_since_epoch * 1000
一段熊猫代码:
import pandas
def to_millis(dt):
return int(pandas.to_datetime(dt).value / 1000000)