Convert Decimal to HH.MM Equivalent
Enter Press Display Print
8.50 8.50
M ↔ Dec
8 30 8 30
Compute Hours Worked
Example: An employee starts work at 8:30am, takes a 45 minute break for lunch at 12:00, a 15 minute
coffee break at 3:00pm and leaves work at 5:00pm. Determine how many hours this employee worked.
Enter Press Display Print
8.30 Start 8 30 8 30
12.00 Change Sign - 12.00
End 12 00 12 00 P
12.45 Change Sign - 12.45
Start - 12.45 12 45 P
3.00 Change Sign - 3.00
End - 3.00 3 00 P
3.15 Change Sign - 3.15
Start - 3.15 3 15 P
5.00 Change Sign - 5.00
End - 5.00 5 00 P
Compute 7.30 7.30
This employee worked 7 hours and 30 minutes. If you wish to convert the 7 hours and 30 minutes to the
decimal equivalent to enable multiplying it by an hourly rate, perform the following key depressions.
Enter Press Display Print
HH.MM 7 30 7 30
M ↔ Dec
7.50 7.50
The alternate method of computing the number of hours worked in the above example would be to use
the adding machine in conjunction with the special function keys.
Enter Press Display Print
8.30 Start 8 30 8 30
5.00 Change Sign - 5.00
End - 5.00 5 00 P
Compute 8.30 8.30
+ 8.30 8.30*+
.45 - .45 .45 -
.15 - .15 .15 -
* 7.30 7.30 *
HH.MM 7 30 7 30
M ↔ Dec
7.50 7.50