Time Duration Calculator
Precise elapsed time between two date-times in days, hours, minutes and seconds.
About the Time Duration Calculator
Time Duration Calculator returns the exact duration between two date-time inputs, decomposed into days / hours / minutes / seconds and also expressed as totals in each unit.
How to use
- Pick the start date-time.
- Pick the end date-time.
- Click Calculate and read the result.
Benefits & key features
- Pinpoint accuracy down to the second.
- Negative durations (end before start) are explicitly handled.
- Useful for SLAs, shift-tracking and event planning.
- Complements the Date Difference Calculator for whole-day math.
Pro tip
For shift pay, divide 'total hours' by 1 and multiply by your rate — the totals output is designed to plug straight into multiplication.