Find the number of days between two dates, or add/subtract days, weeks, months, or years from a date.
| Property | Value |
|---|---|
| Start date | August 30, 2026 (Sunday) |
| End date | September 29, 2026 (Tuesday) |
| Total days | 30 |
| Weeks and days | 4w 2d |
| Years, months, days | 0y 0m 30d |
Calculate the exact number of days between two dates, or add/subtract a number of days from a specific date, with our free date calculator.
This calculator counts calendar days between two given dates (accounting for varying month lengths and leap years), or adds/subtracts a specified number of days to a starting date.
By default, it counts all calendar days; some versions offer a "business days only" option that excludes weekends.
The calculator automatically accounts for leap years when calculating date differences, ensuring accurate day counts across February 29th occurrences.
Yes, this calculator supports a wide range of dates for both historical and future date calculations.
The Age Calculator specifically computes age from a birth date to today; this tool handles general date arithmetic between any two dates.