Python datetimes, timestamps, UNIX, posix
import time
from datetime import datetime
now = datetime.utcnow() # Timezone naive (no timezone info at all)
print(now)
# 2016-04-07 14:33:33.184000
print(now.isoformat())
# 2016-04-07T14:33:33.184000
now_posix = time.mktime(now.timetuple()) + now.microsecond * 0.000001
print(now_posix)
# 1460036013.18
now_again = datetime.fromtimestamp(now_posix)
print(now_again)
# 2016-04-07 14:33:33.184000