Fetching datetime from float in Python

Question

How does one get a datetime from a float in Python?

For e.g, I have a float such as 43111.0 and I want to get the datetime for

Answer 1

Looks like an Excel datetime format, called serial date. Quick and dirty way to convert it:

>>> import datetime
>>> serial = 43111.0
>>> seconds = (serial - 25569) * 86400.0
>>> datetime.datetime.utcfromtimestamp(seconds)
datetime.datetime(2018, 1, 11, 0, 0)