[Datetime-SIG] Datetime arithmetic proposal

[Alexander Belopolsky]

On Tue, Jul 28, 2015 at 9:54 PM, Chris Barker <chris.barker at noaa.gov> wrote:
> 1) timespan since an epoch: -- i.e seconds since Jan 1, 1970 00:00. This is
> how the datetime object keeps it internally.

No, it is not.  You are probably confusing stdlib datetime with
numpy.datetime64.
The stdlib datetime keeps broken down year, month, day, hour, minute, second
and microsecond values.