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Month and day shift
Month and day shift — choose your inputs and copy or save the result. Input guide: Start date, Months to add, Days to add. No account needed.
No account needed
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How to use
- 1Input guide: Start date, Months to add, Days to add.
- 2Run the tool and review the result.
- 3Copy result / Save result file.
Good to know
Months are added first, clamping missing month ends to the last day. Days are added afterward.
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Worked input and output example
These results come from this tool’s actual engine using the sample values below, not your personal input or saved work. Load the example in the tool to inspect the same inputs.
Example input
| Field | Value |
|---|---|
| Start date | 2026-01-31 |
| Months to add | 1 |
| Days to add | 0 |
Example result
2026-02-28
Input constraints
These are the actual input validation limits; they are not a guarantee that every accepted value is realistic or that a model applies to your situation.
- Months to add: Accepted range: -100,000 ≤ x ≤ 100,000 · Whole numbers only
- Days to add: Accepted range: -100,000 ≤ x ≤ 100,000 · Whole numbers only