FREE · PRIVATE · INSTANT
Date & Age Calculator
Calculate exact age, compare two dates, or add and subtract time from any date.
✓ Three useful modes
✓ Weekday-aware results
✓ No data upload
Your dates stay private. Everything is calculated locally in your browser.
Useful for everyday planning
- Check an exact age on any date.
- Count days between travel, work or event dates.
- Find a deadline by adding or subtracting time.
Clear calculation rules
- Use “Include end date” when both boundary dates must count.
- Weekdays mean Monday to Friday; holidays are not removed.
- Month-end and leap-year dates are adjusted safely.