I have a spreadsheet which I am using 00:/00 format for the time so I don't have to manually input the : but I have a cell that needs to calculate between times and it is not working.
......by using a formula such as :
=INT(A1/100)/24 + MOD(A1,100)/24/60
where A1 contains your entered value ; entering 745 will result in 07:45.
Narayan