Date Difference Calculator
Find the exact difference between two dates.
Calculate Date Difference
Select two dates to find the exact difference in years, months, weeks and days.
Counting Options
Exact Time Breakdown
Elapsed duration in hours, minutes and seconds.
Date Countdown
Count down to a birthday, anniversary, exam or special event.
Quick Calculate
Try these common date differences
About Date Difference Calculator
This tool helps you find the exact difference between two dates. It shows the result in years, months, weeks and days, along with the total number of days.
Example: Count Days Between Dates
To find elapsed days between 1 March and 8 March of the same year, enter both dates. The elapsed difference is 7 days; counting both start and end dates inclusively gives 8 calendar dates.
Check the counting method
- Include the year for dates across different years.
- Leap years can affect February date differences.
- For deadlines, check whether the first day is included under the relevant rules.
Related tools: Age Calculator and Time Calculator.
Date Difference FAQs
How many days are between two dates?
Select the start and end dates and run the calculator to find the elapsed number of days.
Does the result include the start date?
Elapsed-day calculations usually measure the difference between dates; inclusive counting may be one day higher.
Can I compare dates across years?
Yes. Use the full dates, including year, for the comparison.
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