41778.00000000 is a kind of time record format

Source: Internet
Author: User
What kind of a time record is this?

In writing a small program, referring to another software data frame, the software with "41778.77877315" this form to record time, do not understand, do not know how to convert, not the Unix time stamp, which hero pointing, thank you

Reply to discussion (solution)

This is Microsoft's date representation
Convert to UNIX timestamp:

$d = 41778.77877315;echo ($d-25569) * 86400;

Hehe, thank you very much, just found the solution in the Phpexcel, the knight provides the method is more simple, thanks

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