date/time calculation

andybrst

New Member
Joined
Jan 24, 2003
Messages
45
I want to calculate the number of hours & minutes between two different dates and times (i.e 05/04/03 13:00 and 06/04/03 14:10 = 25:10 (hours).
Can anyone advise how?

Ta
 

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Try the DateDiff function.

You could write your own function for this in VBA, or just do it in the query.

VBA:
Code:
Public Function HoursMins(dt1 as Date, dt2 as Date) as String
    Dim lngMins as Long
    
    lngMins = DateDiff("n",dt1,dt2)
    HoursMins = (lngMins \ 60) & ":" & (lngMins Mod 60)
End Function
Then you could use the above function in a query:

fldHours: HoursMins([fldDate1],[fldDate2])

There are other ways you can do this also - hopefully this give you a start. Note that if dt1 is later (more recent) than dt2, you'll get a negative number.
 
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