Converting Excel time-format (hours since 1.1.1901)

[Dirk Hagemann]

Hello,

>From a zone-file of a Microsoft Active Directory integrated DNS server
I get the date/time of the dynamic update entries in a format, which
is as far as I know the hours since january 1st 1901.
For Example: the number 3566839 is 27.11.07 7:00. To calculate this in
Excel I use this:
="01.01.1901"+(A1/24-(REST(A1;24)/24))+ZEIT(REST(A1;24);0;0)  (put
3566839 in field A1 and switch the format of the result-field to the
corresponding date-time format).

You might guess what I need now: I want to calculate this somehow in
python.

Sorry, but I couldn't find anything in the module time or something
else to get this calculated.

Does anyone know how to convert this time in python to something
usable or how to convert this formula in python?

Thanks a lot and regards
Dirk