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st: calculating elapsed time


From   "Colin A. McKenzie" <camcken@uwimona.edu.jm>
To   statalist@hsphsun2.harvard.edu
Subject   st: calculating elapsed time
Date   Sat, 22 Jun 2002 20:04:17 -0400

Dear All,

I have a data set that has variables time1, date1, time2 and date2.  The
time variables use the 24 hr clock (ie 1:30 pm is written as 13:30) and
the date variables are in the form dd/mm/yyyy.  I need the number of
hours (to one decimal place) between time1 on date1 and time2 on date2. 
Is there an easy way to calculate this in stata 7?

Thanks,

Colin
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