time_str = "2016-08-09 16:07:31"

dtime = time.mktime(time.strptime(time_str, '%Y-%m-%d %H:%M:%S'))

拿到datetime对象：

dtime = datetime.datetime.utcfromtimestamp(float(dtime))

处理时差问题：

(dtime + datetime.timedelta(hours=16)).strftime('%Y-%m-%d %H:%M:%S')

def time_to_name_day():

time_now = time_to_name_str(time.time())

local_time = time.localtime(time_now)

return time.strftime('%Y%m%d', local_time)