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Free developer utilities that run entirely in your browser. Fast, private, and always free.

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  • Date Calculator

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  2. Date Calculator

Date Calculator

Calculate days between dates or add/subtract time

30
Total Days
4w 2d
Weeks
30
Weekdays
9
Weekend Days
Breakdown
30 days

Related Tools

  • Unix Timestamp - convert to timestamps
  • Cron Builder - schedule recurring events
  • Meeting Cost Calculator - plan meeting schedules

How to Use Date Calculator

  1. Enter start and end dates

    Select or type two dates to calculate the difference between.

  2. View the difference

    See the difference in days, weeks, months, and years.

  3. Add or subtract days

    Use the date math feature to add or subtract days from a date.

Frequently Asked Questions

Is the Date Calculator free to use?
Yes, the Date Calculator is completely free with no limitations. Calculate date differences or add/subtract time as often as you need without registration.
Is my data private?
Yes, all date calculations happen locally in your browser using JavaScript. No dates or personal information are sent to any server.
What calculations can I perform?
You can calculate the difference between two dates in days, weeks, months, and years. You can also add or subtract days, weeks, months, or years from any date to find a future or past date.
Does the tool account for leap years?
Yes, all calculations properly account for leap years, varying month lengths, and calendar rules. The tool uses standard date libraries to ensure accurate results.