Date Calculator
Calculate days between dates, add/subtract time periods, and more.
📅 Days Between Dates
From to
Difference
âž• Add or Subtract from Date
Result Date
🎂 Age Calculator
Birth date:
Age
📆 Find Weekday
What day is/was ?
Weekday
🔒 Privacy First: All calculations happen locally in your browser. No data is sent to any server.
Date Calculation Tips
- Business days: When planning projects, remember weekends don't count as business days
- Leap years: February has 29 days in leap years (divisible by 4, except century years not divisible by 400)
- Month lengths: 30 days hath September, April, June, and November...
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