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
下面是一个基于上面答案的函数
def getDateToEpoch(myDateTime):
res = (datetime.datetime(myDateTime.year,myDateTime.month,myDateTime.day,myDateTime.hour,myDateTime.minute,myDateTime.second) - datetime.datetime(1970,1,1)).total_seconds()
return res
你可以像这样包装返回值: 返回不带十进制值的字符串或只是int(不带str)
其他回答
在Python 3.3中,添加了新的方法timestamp:
import datetime
seconds_since_epoch = datetime.datetime.now().timestamp()
你的问题说你需要毫秒,你可以得到这样的毫秒:
milliseconds_since_epoch = datetime.datetime.now().timestamp() * 1000
如果在naive datetime对象上使用时间戳,则假定该对象位于本地时区。如果您不希望发生这种情况,请使用时区感知的datetime对象。
你可以用德罗宁去时空旅行!
import datetime
import delorean
dt = datetime.datetime.utcnow()
delorean.Delorean(dt, timezone="UTC").epoch
http://delorean.readthedocs.org/en/latest/quickstart.html
>>> import datetime
>>> import time
>>> import calendar
>>> #your datetime object
>>> now = datetime.datetime.now()
>>> now
datetime.datetime(2013, 3, 19, 13, 0, 9, 351812)
>>> #use datetime module's timetuple method to get a `time.struct_time` object.[1]
>>> tt = datetime.datetime.timetuple(now)
>>> tt
time.struct_time(tm_year=2013, tm_mon=3, tm_mday=19, tm_hour=13, tm_min=0, tm_sec=9, tm_wday=1, tm_yday=78, tm_isdst=-1)
>>> #If your datetime object is in utc you do this way. [2](see the first table on docs)
>>> sec_epoch_utc = calendar.timegm(tt) * 1000
>>> sec_epoch_utc
1363698009
>>> #If your datetime object is in local timeformat you do this way
>>> sec_epoch_loc = time.mktime(tt) * 1000
>>> sec_epoch_loc
1363678209.0
[1] http://docs.python.org/2/library/datetime.html#datetime.date.timetuple
[2] http://docs.python.org/2/library/time.html
一段熊猫代码:
import pandas
def to_millis(dt):
return int(pandas.to_datetime(dt).value / 1000000)
这是另一种形式的解决方案与规范化的时间对象:
def to_unix_time(timestamp):
epoch = datetime.datetime.utcfromtimestamp(0) # start of epoch time
my_time = datetime.datetime.strptime(timestamp, "%Y/%m/%d %H:%M:%S.%f") # plugin your time object
delta = my_time - epoch
return delta.total_seconds() * 1000.0