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Free online tool
Date & Days Calculator
Count the days between two dates, find a date by adding or subtracting days, and count working days — with weeks, months and years shown too.
Difference
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Calculated instantly in your browser.
How it works
How to use the Date & Days Calculator
01
Pick a calculator
Days between dates, or add/subtract from a date.
02
Choose dates
Pick dates from the calendar or use Today.
03
Get the answer
Days, weeks, months, working days and the exact date.
Features
Why use our Date & Days Calculator?
Days between dates
Total days, weeks, months and years between any two dates.
Working days
Count business days — choose Saturday + Sunday or Friday weekends.
Add or subtract
Add days, weeks, months or years to any date.
Countdown
See how many days are left until an event.
Include end date
Optionally count the last day too.
Instant
Results update as you type.
Works well with: age calculator, emi calculator, percentage calculator, gpa calculator — or browse all text & utility.
FAQ
Frequently asked questions
Everything you need to know about the Date & Days Calculator.
Back to the toolHow do I count the days between two dates?
Choose the start and end dates. The calculator shows the total days, plus the same period in weeks, months and years.
Should I include the end date?
Normally no — from 1 to 2 January is 1 day. Tick “Include end date” when counting days of a leave, event or rental where both days count.
How are working days counted?
Working days exclude weekends. You can choose Saturday–Sunday weekends or Friday weekends (Friday–Saturday or Friday only). Public holidays are not excluded.
What happens when adding a month to 31 January?
The date is moved to the last day of February (28 or 29), which is the standard rule.
Can I count days until my birthday or an event?
Yes. Set the start date to today and the end date to the event.
Next step
All Text & Utility
What to do next
Guides
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