️ Date Difference
Calculate days, weeks, months and years between two dates
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Free Online ️ Date Difference
Calculate the exact difference between two dates in days, weeks, months and years. Useful for knowing how many days are left until an event, how much time has passed since a date, or working out deadlines and durations for paperwork, projects or planning.
Why use ️ Date Difference
- Total days, weeks and the exact difference in years, months and days
- Works for both future and past dates
- Instant result as you choose the dates
- Counts business days from Monday to Friday between the two dates
- Free, no sign-up
How to use it in 3 steps
- 1
Choose the start date
Select the first date for the comparison.
- 2
Choose the end date
Select the second date for the comparison.
- 3
Check the result
You'll see the difference in days, weeks, months and years.
Questions about ️ Date Difference
Can I calculate the difference between a past date and a future one?
Yes, it works both ways: you can calculate how much time has passed since a date, or how long until a future date.
How does it calculate months and years when they have different lengths?
It shows the exact calendar difference: it counts whole months (if a day doesn't exist in a month, like 31 February, it uses the last day) and then the remaining days. Total days are always exact.
Can I use it for legal or administrative deadlines?
It counts calendar days and business days from Monday to Friday. It does not subtract public holidays, which vary by country and region, so remove those separately for a legal deadline.
What happens if I pick an end date before the start date?
The tool detects that the difference is negative and shows this in the result.
Is ️ Date Difference free?
Yes, ️ Date Difference from WebHerramientas is 100% free. No registration or subscription required. You can use it as many times as you need at no cost.
Is it safe to use ️ Date Difference online?
Yes, all information is processed directly in your browser. We do not store or send your data to any external server.
Does ️ Date Difference work on mobile?
Yes, the tool is fully responsive and works on any device: phone, tablet or computer with a modern browser.