Date Difference
Calculate the exact number of days, weeks, months, and years between any two dates with precision
How to Use This Tool
In Date Difference mode, pick a start and end date to see the exact time between them.
Toggle "Include end date" to count the end date as a full day.
View results in years/months/days, total days, weeks, hours, and business days.
Switch to Add Days mode to calculate a future date from a start date plus N days.
About This Tool
Date Difference Calculator computes the exact time between any two dates in multiple formats: years, months, and days, plus total weeks, days, hours, minutes, and seconds. It also calculates business days (excluding weekends). The Add Days mode lets you find what date falls N days after a start date. Date Info shows the day of week, day of year, and ISO week number.
Frequently Asked Questions
Business days exclude Saturdays and Sundays. Public holidays are not excluded as they vary by country and region.
Yes. By default, the count excludes the end date (e.g., Jan 1 to Jan 3 = 2 days). Enabling this option includes it (= 3 days).
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