Date addition & subtraction
Add or subtract whole calendar days from a date.
01 / Your input
02 / Your result
Your result will appear here.
How to use this tool
- Enter your own values, or select Load example to restore the demonstration inputs.
- Review Start date, Days to add (negative subtracts) before selecting Run tool.
- Inspect the result, then copy it or download the generated file. Changing inputs clears the previous result.
Processing happens in this browser. Inputs are not uploaded or saved by the tool. Reset clears the result and restores the default settings.
Example and expected result
2024-02-28 plus 2 days is 2024-03-01.
Limits and interpretation
Uses calendar days, including weekends and leap days; not business days or calendar months.