Date Calculators
- Time and Date Duration – Calculate duration, with both date and time included
- Date Calculator – Add or subtract days, months, years
- Weekday Calculator – What day is this date?
- Birthday Calculator – Find when you are 1 billion seconds old
Related Links
- Calendar & Holidays Overview – Explore calendar tools
- Calendar Generator – Create a calendar for any year
- The World Clock – Current time all over the world
- Countdown to Any Date – Create your own countdown