Date Calculator
Calculate days between two dates, or add and subtract days from a specific date.
Start Date
End Date
Duration
30 Days
Or
0 Years, 1 Months
Online Date Calculator
This calculator allows you to perform two main date operations:
- Calculate Duration: Find the exact number of days, months, and years between any two given dates.
- Add or Subtract Time: Enter a starting date and add or subtract years, months, and days to find the resulting date.
Whether you are planning a project timeline, counting down to a vacation, or checking a warranty period, this tool provides instant and accurate results.
How to Use It
Choose "Duration" or "Add/Subtract" mode, enter your date(s) and any years/months/days to add or subtract, and the result updates instantly.
Example
Adding 90 days to 15 January 2026 lands on 15 April 2026. Finding the duration between 1 January 2026 and 15 April 2026 gives exactly 104 days.
Common Use Cases
- Calculating a deadline or due date a set number of days out.
- Finding the exact number of days until an event or between two milestones.
FAQs
Does this account for leap years?
Yes, leap years and varying month lengths are handled automatically.