import time
import datetime
dt = datetime.datetime(2012, 12, 4, 19, 51, 25, 362455)
dt64 = np.datetime64(dt)
date_time = time.gmtime((dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's'))
import time
import datetime
dt = datetime.datetime(2012, 12, 4, 19, 51, 25, 362455)
dt64 = np.datetime64(dt)
date_time = time.gmtime((dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's'))