Date difference calculator

Find the difference between two dates

Calculate how many days, weeks and weekdays separate two dates. Toggle inclusive or exclusive counting.

Days between dates

Total days

159

Inclusive

159

Weeks

22 wk 5 d

Weekdays

114

From Sunday, July 26, 2026 to Thursday, December 31, 2026.

Frequently asked questions

What is the difference between date difference and days between dates?
They are the same calculation. This tool counts the days, weeks and weekdays between any two dates and lets you include or exclude the start date.
How do I calculate the difference in months?
Enter the two dates and divide the total days by roughly 30.44 for an approximate month count. For an exact year-month-day breakdown, use the age calculator.
Does this include leap years?
Yes. The date difference is computed using calendar dates, so February 29 in leap years is included in the count.
How are weekdays counted?
Weekdays are Monday through Friday. Saturdays and Sundays are excluded from the weekday count.