Date Difference Calculator
Find the exact time between two dates. This calculator shows the total number of days, weeks, business days, and the breakdown in years, months, and days between any two dates.
Formula reviewed for accuracy. Our methodology & sources
Date Difference Calculator
date calculator
How It Works
The calculator measures the gap between your two dates in several ways at once: the raw total of days, the same span expressed in weeks, and a calendar breakdown into years, months, and days. To count business days it walks through the period one day at a time and skips every Saturday and Sunday, giving a working-day total useful for projects and deadlines. Note that it counts weekends out automatically but does not know about public holidays, which vary by country.
Examples
Jan 1 to Dec 31, 2025
364 days, or about 52 weeks.
Frequently Asked Questions
How do I calculate days between two dates?
Subtract the earlier date from the later date. This calculator does it automatically — just enter both dates and it counts the days, including or excluding weekends.
What are business days?
Business days are weekdays (Monday through Friday), excluding Saturdays and Sundays. This calculator counts them automatically, though it does not account for public holidays.
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