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Calculate days between dates, add or subtract days/weeks/months/years. Find working days, day of week, and more.
Total Days
30
0y 0m 30d
30
Days
4.3
Weeks
0
Months
0
Years
30 days
1 Week
7 days
2 Weeks
14 days
1 Month
30 days
3 Months
90 days
6 Months
180 days
1 Year
365 days
2 Years
730 days
5 Years
1,825 days
To find days between dates: Enter start and end dates. The calculator shows total days, weeks, months, and years with a breakdown of years/months/days. To add days: Select "Add to Date" mode, enter start date and number of days. Working days calculation excludes weekends. Example: January 1 to December 31 = 364 days = 52 weeks = 260 working days.
Enter both dates in the calculator to get the exact difference. The calculation subtracts the start date from the end date, accounting for leap years and varying month lengths. Results show days, weeks, months, and years.
Select "Add to Date" mode, enter your starting date and the number of days (or weeks/months/years) to add. The calculator accounts for month lengths and leap years to give you the exact future date.
Enable "Exclude Weekends" option to count only Monday-Friday. You can also exclude specific holidays. Working days are useful for project deadlines and business planning.
A leap year has 366 days (February has 29 days). It occurs every 4 years, except century years (1900, 2100) unless divisible by 400 (2000 was a leap year). The calculator automatically handles leap years.
The calculator uses actual calendar months (not 30-day approximations). It tracks year, month, and day components separately. "3 months" means 3 calendar months regardless of the actual days (which could be 89-92 days).
Yes! The calculator handles any date range from year 1 to 9999. It correctly accounts for all leap years in the range and provides breakdowns by year, month, and day.
Total Days
30
0y 0m 30d