-- coding:utf-8 --

import re from datetime import datetime, timezone,timedelta

def to_timestamp(dt_str,tz_str): d = datetime.strptime(dt_str, '%Y-%m-%d %H:%M:%S')

regStr = r'^UTC(\+|-{1})(0*\d*|1[0-2]*):00'

pattern = re.compile(regStr)

m = pattern.match(tz_str)

tz_neg_str = m.groups(2)[0]

tz_num_str = m.groups(2)[1]

tz_num = int(tz_num_str)

if tz_neg_str == '-':
    tz_num = tz_num * -1

tz_utc = timezone(timedelta(hours=tz_num))

utc_dt = d.replace(tzinfo = tz_utc)
print(utc_dt)

return utc_dt.timestamp()

t1 = to_timestamp('2015-6-1 08:10:30', 'UTC+7:00') assert t1 == 1433121030.0,t1

t2 = to_timestamp('2015-5-31 16:10:30', 'UTC-09:00') assert t2 == 1433121030.0,t2

print('Pass')