Time & Date Tools
Date Calculator
Calculate time durations or add/subtract time from dates
Calculate durations between two dates or add and subtract time units.
Calculation type
Calculate duration
Start date
End date
Result
Run a calculation to see the result.
Examples
Duration: pick two datetimes to see approximate years, months, days, hours, and minutes. Add / subtract: combine one datetime with a positive whole number of units (months use calendar math).