30 minutes is 30 minutes
30 minutes is 30 minutes
0:30 · 0.5 decimal hours
30 minutes is 30 minutes. Written for a timesheet that wants decimal hours, it is 0.5.
How it is worked out
Divide by 60. 30 ÷ 60 = 0.5 hours. The whole number is the hours; multiply what is left by 60 to get the minutes back.