Utility
Date Calculator
Days between dates, add or subtract time, and business day calculations. The date math you'd rather not do in your head.
Total Days
14
In Weeks
2 w 0d
In Months
0
In Years
0
There are 14 days until Tuesday, July 21, 2026. That's 11 business days.
Frequently asked questions
What counts as a business day?
Monday through Friday. Weekends (Saturday and Sunday) are excluded. Federal holidays are currently not excluded — if you need government-specific business day calculations, you may want to account for holidays separately.
Does 'days between' include the start date?
No. It counts the number of full 24-hour periods between the two dates. June 1 to June 2 = 1 day. For same-day calculations, the result shows 'Same day' with 0 days.
Is February handled correctly?
Yes. The JavaScript Date object handles leap years and varying month lengths natively. February 28 to March 1 on a leap year is 2 days, not 1.
Can I use a negative number in Add/Subtract?
Yes — type a negative number in the amount field to go backward. '-30 days' gives you the date 30 days before. The quick buttons also include '-7 days' and '-1 month'.
Calculate the exact number of days between any two dates, or add and subtract days, weeks, and months from any starting date. Perfect for project planning, deadline tracking, and countdowns.
The calculator automatically accounts for leap years and different month lengths. Whether you're calculating age, tenure, or days until an event — you get precise results instantly.