Time Calculator
Add or subtract hours, minutes, and seconds. Perfect for calculating time sheets, durations, and schedules.
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Applications
Payroll calculations (adding up hours worked), flight duration planning, and film editing (calculating total runtime of clips).
Base-60
Converts all inputs to total seconds, performs the addition or subtraction, and then converts the total seconds back into Hours, Minutes, and Seconds.
Fun Fact: The division of the hour into 60 minutes and the minute into 60 seconds comes from the Babylonians, who used a sexagesimal (base-60) number system.
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