Decimal to Time Converter

This is the whole page in one line. A decimal hour is a fraction of 60, so 0.4 hours is 0.4 times 60, which is 24 minutes. It is not 40 minutes, and that single assumption causes more timesheet disputes than any other.

The same trap runs through the range. 0.2 is 12 minutes, 0.6 is 36, 0.8 is 48. None of them end in the digits the decimal suggests, and all of them look wrong at a glance until you do the multiplication.

Only the quarters behave the way people expect: 0.25 is 15 minutes, 0.5 is 30, 0.75 is 45. Those are the ones everyone knows, which is exactly why the others catch people out.

Payroll thinks in decimals because pay is hours times a rate. So a payslip says 37.6 hours, and the person reading it wants to know whether that matches the week they actually worked.

Split it in two. The whole number is the hours, unchanged. Multiply what is left by 60 for the minutes. 37.6 becomes 37 hours 36 minutes, and now it can be checked against a diary.

If the answer is a fraction of a minute, the original was rounded. 7.33 hours is 7 hours 19.8 minutes, which means the true figure was 7 hours 20 and someone shortened 0.3333 to 0.33 on the way in.

Converting a payroll number back into hours and minutes is a sign the two systems are not talking. The person doing it is auditing a figure they were handed, usually because it did not look right.

Keeping both forms from the start removes the step. Timesheets record real start and finish times and total them in decimal for payroll, so the readable version never gets thrown away.

For the other direction, the minutes to decimal converter lists all 60 minutes, and the hours to decimal converter takes a full HH:MM time.