Date Difference Calculator
Find the time between two dates in years, months, days, weeks and working days.
- Total days
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- Weeks
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- Working days
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Time between two dates
This date difference calculator measures the span between a start and end date. It breaks the gap into years, months and days, and also reports the total number of days and weeks for quick planning.
Working days
It additionally estimates working days by excluding Saturdays and Sundays across the range — handy for project timelines and leave planning. Public holidays are not deducted, so treat the figure as an approximation.
How to use the Date Difference Calculator
- Choose the start date. Pick or type the first date.
- Choose the end date. Pick or type the second date.
- Read the breakdown. See years, months and days between the two dates.
- Check totals. Review total days, weeks and approximate working days.
Frequently asked questions
Are working days exact?
They exclude weekends but not public holidays, which vary by country, so treat the working-day figure as an approximation.
Does the order of dates matter?
No. If the end date is earlier than the start date, the calculator swaps them and shows the absolute difference.
How are months counted?
Months use real calendar lengths, borrowing days from the previous month when needed, so results match everyday usage.
Is my data stored?
No. All dates are processed in your browser and nothing is sent to a server.