Date Difference Calculator
9 toolsFind the difference between two dates.
Runs in your browser — your files and text stay on your device
Find the difference between two dates as a total number of days and as a years, months and days breakdown. The order of the dates doesn't matter. Use it for project timelines, deadlines and counting days until an event. The calculation runs in your browser.
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Pick both dates
How to use this tool
- 1Pick a Start date and an End date.
- 2The total days and a years/months/days breakdown appear.
Frequently asked questions
Does the order of dates matter?
No — the tool calculates the absolute difference regardless of order.
Why a different month count than expected?
The breakdown accounts for actual days per month, more accurate than dividing by 30.