Re: Dates before 1970

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This will definitely solve one way but still other is there,
How to get that -ve number which starts at 1/1/1900 at 00:00 AM = 0

I need to be able to convert back and forth as there are some
calculations to be done on date field,

But this is very interesting..
Thx
SP

On 4/13/06, Rasmus Lerdorf <rasmus@xxxxxxxxxxx> wrote:
> Suhas wrote:
> > Hello,
> >
> > I have a project that deals with the date time stamps since 1900 (and
> > past), any suggestions about a good class that handles Date Time
> > Format before 1970. I really like date() function and want something
> > similar.
>
> date() uses Unix timestamps which on most Unix platforms goes from
> -MAX_INT to MAX_INT which means the date range is actually
> 12:45:52 12/13/1901 to 07:14:07 01/18/2038.  So you might be able to get
> away with it.
>
> You can check it with:
>
> echo date("h:i:s m/d/Y",-2147483648);
> echo date("h:i:s m/d/Y", 2147483647);
>
> Windows, not being Unix, doesn't understand that the timestamp can be
> negative, although I think someone fixed that in PHP 5.  In my 11+ years
> of PHP I have yet to run PHP on Windows, so I wouldn't know.
>
> -Rasmus
>


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