Accurate date difference calculations accounting for leap years and varying month lengths.
View results in years/months/days, total days, weeks, hours, minutes, and seconds.
Real-time calculation as you select dates with no loading time.
Use today, yesterday, or preset time periods for quick calculations.
Choose whether to include the end date in your calculation.
All calculations happen in your browser. No data stored or transmitted.
Calculate exact age from birth date to today
Track how long a project has been running
Calculate days until an important event
Calculate total time at a job or company
Track anniversaries and special dates
Calculate time spans for historical research