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Converting Excel time-format (hours since 1.1.1901)

mensanator at aol.com mensanator at aol.com
Fri Dec 7 10:04:29 EST 2007 
On Dec 7, 7:20�am, Dirk Hagemann <DirkHagem... at gmail.com> wrote:
> 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.

Your guess appears to be off by a couple centuries.

(3566839/24)/365 = 407

> 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
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