Datetime New Obj vs Replace

datetime.py

from datetime import datetime
from timeit import timeit


iterations = int(1e6)


def method_one():
    now = datetime.now()
    hour = datetime(now.year, now.month, now.day, now.hour)
    return hour


def method_two():
    now = datetime.now().replace(minute=0, second=0, microsecond=0)
    hour = now.replace(minute=0, second=0, microsecond=0)
    return hour


res_one = timeit(method_one, number=iterations)
res_two = timeit(method_two, number=iterations)


print('Total time for %s iterations:', iterations)
print('')

print('Method one: ')
print('- %s' % res_one)
print('- avg: {:.10E} s'.format(res_one / iterations))
print('')

print('Method two: ')
print('- %s' % res_two)
print('- avg: {:.10E} s'.format(res_two / iterations))
print('')