Python modulo support for datetime

datetime_modulo.py

import datetime as dt


class datetime(dt.datetime):
    def __divmod__(self, delta):
        seconds = int((self - dt.datetime.min).total_seconds())
        remainder = dt.timedelta(
            seconds=seconds % delta.total_seconds(),
            microseconds=self.microsecond,
        )
        quotient = self - remainder
        return quotient, remainder

    def __floordiv__(self, delta):
        return divmod(self, delta)[0]

    def __mod__(self, delta):
        return divmod(self, delta)[1]

demo.rst

>>> from datetime_modulo import datetime
>>> from datetime import timedelta
>>> d = datetime.now()
>>> d
datetime(2016, 4, 15, 18, 16, 37, 684181)
>>> d % timedelta(seconds=60)
datetime.timedelta(0, 37, 684181)
>>> d // timedelta(seconds=60)
datetime.datetime(2016, 4, 15, 18, 16)
>>> d % timedelta(minutes=15)
datetime.timedelta(0, 97, 684181)
>>> d // timedelta(minutes=15)
datetime.datetime(2016, 4, 15, 18, 15)

link for others: https://gist.github.com/mscheper/9c39091e12f2ca8addb3d5eef7a40480

Ditto, spot on, and timely - thanks!