Date Add / Subtract Calculator
Add or subtract calendar days from a selected start date; this is not a business-day calculation.
How to use Date Add / Subtract Calculator
- Enter Start date, Days (negative to subtract).
- Choose Run tool to calculate or generate the result.
- Check the result and the limitations below before reusing it.
A practical example
Options:
{
"start": "2026-12-31",
"days": 7
}
Example result:
{
"date": "2027-01-07"
}Limitations and common mistakes
Calculations use your inputs. Review the result and assumptions before use.
Calculations use your inputs. Review the result and assumptions before use.
Questions about Date Add / Subtract Calculator
What input does Date Add / Subtract Calculator need?
Input options: Start date, Days (negative to subtract).
What does Date Add / Subtract Calculator return?
Calculated result fields: date.
What should I check before using Date Add / Subtract Calculator results?
Calculations use your inputs. Review the result and assumptions before use.
Supported input and output
Input options: Start date, Days (negative to subtract).
Calculated result fields: date.