Date Calculator

Enter both dates and the calculator will find the exact number of days between them. It accounts for varying month lengths and leap years. For example, from January 1 to March 15 is 73 days (74 in a leap year).

Switch to 'Add/Subtract Days' mode, enter your starting date and the number of days to add. The calculator will show you the resulting date. For example, adding 90 days to January 1, 2026 gives you April 1, 2026.

Business days exclude weekends (Saturday and Sunday). Our calculator shows both calendar days and business days. For example, a 7-calendar-day span typically has 5 business days. Note: public holidays are not excluded as they vary by country and region.

Our calculator shows the time difference in multiple units: total days, weeks (days ÷ 7), and approximate months. Months are calculated based on actual calendar months, accounting for different month lengths.

Yes, the calculator fully accounts for leap years. A leap year occurs every 4 years (with exceptions for century years not divisible by 400). February has 29 days in a leap year instead of 28, which affects date calculations spanning February.