Question

I have time represented by a decimal number that I need to convert to minutes and seconds in Excel using VBA.

Example:
The number before the decimal point gives the minutes as 0.197683577 (0 minutes)
and the number multiplied by 60 gives the seconds = 0.197683577*60 = 11.86101462 (12 seconds)
= 0:12

I know I could do this by copying and pasting into text format and separating the number to the left and right using text to columns of the decimal point and then add “:” in between but there must be a way to calculate this.

Answer 1

The VBA function didn’t work for me but I found a workaround within Excel:

=TRUNC(W11/60)&":"&IF(ROUND(((W11/60-TRUNC(W11/60))*60),0)=0,"00",ROUND(((W11/60-TRUNC(W11/60))*60),0))`

Where W11 is time in the form of a decimal number like 900.3201306.
The result is in minutes 15:00

Basically, you take the truncated decimal minutes minus the decimal minutes+seconds to give you seconds only. Then you take the decimal seconds * 60 to give you seconds+milliseconds. Round this to give you seconds. If seconds are 0 then write “00” to get the correct format. Then add the truncated minutes plus the seconds.

This formula seems to be working.