In short: Date Calculator counts the days, weeks, months and business days between two dates, or finds the date a set number of days, weeks, months or years away.
Processed locally in your browser
Your files and text are handled entirely on your device using your browser. They are never uploaded to our servers.
Calculated instantly in your browser.
How to use Date Calculator
3 quick steps. Most people are done in under a minute.
- 1
Choose “Days between dates” or “Add / subtract”.
- 2
Pick your dates or enter an amount of days, weeks, months or years.
- 3
See the result, including weekdays and weekends.
Date Calculator features
- Days between dates, with an option to include the end date
- Weekdays vs weekend days
- Add or subtract days, weeks, months or years
- Business-days-only mode for deadlines
When to use Date Calculator
- Count down to a holiday, wedding or exam
- Work out a project deadline in working days
- Find a date 90 days from today for visas or returns
About this tool
Find the number of days, weeks, months and business days between two dates, or work out the date that is a certain number of days, weeks, months or years before or after another date. Optionally count business days only.
Date Calculator FAQ
How many days are between two dates?
Choose “Days between dates”, pick a start and end date, and the total appears instantly, along with weeks, months, weekdays and weekend days.
Should I include the end date?
Turn on “Include the end date” when both the first and last day count, such as a 3-day event from Monday to Wednesday.
How do I add business days?
Choose “Add / subtract”, select days and turn on “Business days only”. Weekends are skipped. Public holidays aren’t excluded, so adjust for those if needed.