**100 Minute Time Clock Calculator**. An hour is most commonly defined as a period of time equal to 60 minutes where a minute is equal to 60 seconds and a second has a rigorous scientific definition. Adding time on a calculator adding time on a calculator without converting the minutes to hundredths is inaccurate.

Adding time to clock. For example if an employee worked 9 hours and 30 minutes on one day and 8 hours and 45 minutes on the day the time card would display. So it is actually 100 minute countdown.

### Learn more about different concepts of time and explore other similar calculators such as the date calculator for determining time between two dates as well as hundreds of other calculators addressing math finance health fitness and more.

Units of time are calculated as 60 minutes equals 1 hour but a calculator uses units of 100. 770 enterprise drive lexington kentucky 40510 phone. E g what time will it be in 30 minutes. Payroll administrators can calculate employee time card hours and minutes worked per week or pay period.