Time duration calculator
Find the time between two moments.
YOUR NUMBERS
Time elapsed
510 minutes · 8.5 hours
Calculated instantly. Your inputs stay in your browser.
THE HOWThe formula
Duration = end timestamp − start timestamp
A practical example
9:00 AM to 5:30 PM on the same date is 8 hours and 30 minutes.
What to keep in mind
Uses wall-clock time without daylight saving or time-zone adjustments. End must be on or after start; choose the following date for an overnight duration.