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Date Difference Calculator
Find the exact number of days, weeks, months, and years between any two dates for planning and scheduling.
About This Calculator
The date difference calculator finds the exact gap between two dates in days, weeks, months, and years. Also counts working weekdays. Used for project planning, contract duration, deadline tracking, and legal date calculations.
How to Use This Calculator
- 1Enter the start date
- 2Enter the end date
- 3Click Calculate to see the difference in all time units
Formula Used
Days = (End Date − Start Date) in milliseconds / 86,400,000
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Verified mathematical formulas
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FAQ
Frequently Asked Questions
Common questions about the date difference calculator answered.
How many days between two dates?+
Select both dates and click Calculate. The result shows the exact day count, including both start and end dates. The calculator also shows weeks, months, years, and working weekdays.
Does this count weekdays automatically?+
Yes. The calculator automatically counts the number of weekdays (Monday through Friday) in the selected range, excluding Saturdays and Sundays.
Can I calculate days between dates in different months and years?+
Yes. The calculator handles any date range — days, months, or decades apart — with full accuracy including leap years and varying month lengths.
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