I like to work with times as follows:

if 
        1 second = 1 / 86400  or 0.000012
then
        12 hours = 0.5
        24 hours = 1.0
        36 hours = 1.5
        48 hours and 1 second = 2.000012

and so on. 

Regards,
Doug 

> -----Original Message-----
> From: lkeeton [mailto:[EMAIL PROTECTED]]
> Sent: Friday, April 06, 2001 13:29
> To: [EMAIL PROTECTED]
> Subject: Does anybody know the formula to convert difference 
> of time in
> decimal
> 
> 
> I am working on a project that needs to get
> 
> This particular format 1000.25
> 
> 1000 representing hours and 25 represent minutes
> 
> 1000 means a full 1000 minutes
> 
> .25 means a quarter of an hour
> 
> so essentially in english language we could say a thousand 
> hours and about 15 
> minutes
> 
> I need a way in sql or simple programming to take a 
> timpestamp(end time) and a 
> timestamp(beginning time)
> 
> for instance 12:00:00 is the end time
>              11:30:44 is the start time
> 
> from here is where i need a solution that gets me the 
> difference of these two 
> times in a decimal format. Of course once I get that I may 
> need to convert 
> back in english to say there are 30 minutes and 44 seconds.
> 
> any ideas
> 
> 
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