Date Calculator Guide
Use this calculator to find the exact number of days, weeks, months, and business days between any two dates. It accurately accounts for different month lengths and leap years.
- Days Between Dates — exact calendar day count
- Business Days — excludes weekends (Saturdays and Sundays)
- Weeks and Remaining Days — e.g. "14 weeks, 3 days"
- Approximate Months — based on average month length of 30.44 days
Common uses include calculating project timelines, countdown to events, age differences, and business day counts for deadlines.
Frequently Asked Questions
How do I calculate days between two dates?
Enter the start and end dates in the calculator above. It will compute the exact number of calendar days, weeks, approximate months, and business days between the two dates.
What counts as a business day?
Business days (or working days) are Monday through Friday, excluding weekends (Saturday and Sunday). This calculator does not exclude public holidays, which vary by country and region.
Does this calculator account for leap years?
Yes, the calculator correctly handles leap years when computing the number of days between dates. February 29 is included in leap years.
Can I calculate days from today to a future date?
Yes, enter today's date as the start date and your target date as the end date. This is useful for countdowns to events, deadlines, or milestones.
How many days are in each month?
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. Total: 365 (366 in leap years).