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Microsoft: Office FAQ

Date/Time Functions

How to convert hours/mins/seconds greater than one day to seconds by Mikeauz
Posted: 27 Sep 04


In converting Hours:Mins:seconds to seconds I was always a beleiver of using =(HOUR($A1)*3600)+(MINUTE($A1)*60)+(SECOND($A1)) but recently discovered that Excel stores times greater than 24 hours as days/months/years/hours/minutes/seconds

To get around this problem paste the following into a module:

Public Function TSITSeconds(CellName) As String
Dim Result, TotResult As String
Dim newname As Integer

TotResult = 0
newname = Int(CellName)

TotResult = (newname * 86400)

TotResult = TotResult + (Hour(CellName) * 3600)
TotResult = TotResult + (Minute(CellName) * 60)
TotResult = TotResult + (Second(CellName))
TSITSeconds = TotResult
End Function

and to use it type this in your excel sheet:


This will give you youre answer in seconds

Hope it Helps

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