如何将datetime.date.today（）转换为UTC时间？

Question

如何确保datetime.date.today()转换为UTC时间？

到目前为止，这是我的代码：

#today : 2014-12-21
today = datetime.date.today()

#1900-01-01 16:00:00+00:00
timeformat = datetime.datetime.strptime('16:00', '%H:%M').replace(tzinfo=pytz.utc)

#combine today and timeformat  2014-12-21 16:00:00
now = datetime.datetime.combine(u, timeformat.time())
str_now =  now.strftime("%Y-%m-%d %H:%M:%S")

Answer 1

使用utcnow：

today = datetime.datetime.utcnow().date()

Answer 2

用于打印日期和时间可以使用...

tomorrow =  twtomorrow.strftime("%Y-%m-%d %H:%M:%S")

而不是

tomorrow =  twtomorrow.strftime("%Y-%m-%d")