VBA getting the difference between Time Stamps


Well-known Member
May 30, 2011
I am looping through a column of TimeStamps in this format:

6/7/2019 9:15:19 AM CDT

I want to find the difference between the first and last time in terms of hours and minutes preferably in a format such as 8.5.

in the below code, sRange is an array of data containing the timestamp.

    fAction = 0
    lAction = 0
    For x = LBound(sRange) To UBound(sRange)
            If sRange(x, 5) > fAction Then fAction = sRange(x, 5)
            If sRange(x, 5) < lAction Then lAction = sRange(x, 5)
    Next x

     difference = lAction - fAction


MrExcel MVP
May 26, 2009
Assuming all the entries in your data are legitimate dates and all for the Central time zone, here's a UDF then can be used like a worksheet function (as in the example below) or can be called from a subroutine.

Excel Workbook
1Date/TimeMax-Min (Hrs)
26/23/2019 19:08
37/8/2019 2:06
47/30/2019 15:36
57/5/2019 13:11
68/10/2019 11:40
78/21/2019 0:50
88/13/2019 4:54
96/7/2019 8:24
106/26/2019 7:33
117/26/2019 1:25
126/15/2019 22:37
137/12/2019 0:23
147/20/2019 7:59
157/27/2019 8:23
168/23/2019 18:45
176/20/2019 15:24
188/28/2019 12:00
198/27/2019 18:06

Function HoursAndMinutes(R As Range) As Double
'returns the duration between max and min times in range R, in hours
Dim Maxx, Minn
Maxx = Application.Max(R)
Minn = Application.Min(R)
HoursAndMinutes = (Maxx - Minn) * 24
End Function

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