Convert date and time to unix timestamps

[Alfie101]

Hi,
I maybe overlooking clues I can see on the internet but I am still having trouble converting date and time (day-month-year-mins, sample below) into unix timestamps. Would be most grateful for help please.
Alfie101

20/4/2017 30

20/4/2017 32

20/4/2017 39

20/4/2017 40

20/4/2017 44

20/4/2017 51

20/4/2017 59

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[Scott Huish]

Do the minutes increment up after 59 to 60 (60 being 1:00 AM) and so on?

If that's the case I believe this UDF will do it:

Function UnixTime(r As String) As Long
Dim d, dv
r = Replace(r, " ", "/")
d = Split(r, "/")
dv = DateValue(d(1) & " " & d(0) & " " & d(2)) + TimeSerial(0, d(3), 0)
UnixTime = (dv - DateSerial(1970, 1, 1)) * 86400
End Function

Excel 2010
	A	B
1	20/4/2017 30	1492648200
2	20/4/2017 32	1492648320
3	20/4/2017 39	1492648740
4	20/4/2017 40	1492648800
5	20/4/2017 44	1492649040
6	20/4/2017 51	1492649460
7	20/4/2017 59	1492649940
Sheet1

Cell Formulas
Range	Formula
B1	=unixtime(A1)
B2	=unixtime(A2)
B3	=unixtime(A3)
B4	=unixtime(A4)
B5	=unixtime(A5)
B6	=unixtime(A6)
B7	=unixtime(A7)

 

[Alfie101]

Do the minutes increment up after 59 to 60 (60 being 1:00 AM) and so on?

If that's the case I believe this UDF will do it:

Function UnixTime(r As String) As Long
Dim d, dv
r = Replace(r, " ", "/")
d = Split(r, "/")
dv = DateValue(d(1) & " " & d(0) & " " & d(2)) + TimeSerial(0, d(3), 0)
UnixTime = (dv - DateSerial(1970, 1, 1)) * 86400
End Function

Excel 2010

	A	B
1	20/4/2017 30	1492648200
2	20/4/2017 32	1492648320
3	20/4/2017 39	1492648740
4	20/4/2017 40	1492648800
5	20/4/2017 44	1492649040
6	20/4/2017 51	1492649460
7	20/4/2017 59	1492649940

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</thead><tbody>
</tbody>

Sheet1​

Worksheet Formulas Cell Formula B1 =unixtime(A1) B2 =unixtime(A2) B3 =unixtime(A3) B4 =unixtime(A4) B5 =unixtime(A5) B6 =unixtime(A6) B7 =unixtime(A7) <thead> </thead><tbody> </tbody>

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Hi Scott,
Thank you lots. I shall try it in the next days and let you know.
Again thanks, regards,
Alfie101