📆 Days Between Two Dates
⏳ Countdown / Countup
Frequently Asked Questions
Enter your start date and end date, then click Calculate. The result shows the exact number of days (and optionally weeks, months) between the two dates. The calculator is inclusive of the start date by default.
Yes — toggle the 'Business days only' option to exclude weekends. This is essential for project timelines, payment terms, SLA calculations, and contract deadlines where only working days count.
January 31, February 28 (29 in leap years), March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, December 31. The calculator handles all of this automatically.
A leap year occurs every 4 years, adding February 29. The rule: divisible by 4 = leap year, EXCEPT century years (1900, 2100) are NOT leap years, UNLESS also divisible by 400 (2000 was a leap year). The next leap years are 2028, 2032, 2036.