Add Years and Months

What Add Years and Months does

Adds years and months to a local date. Unlike Add Years or Add Months alone this takes both. Unlike Add Quarters this is free-form. Invalid dates fail.

Add Years and Months sits in the Date & time group on purpose. It is not Add Years (Add years; shows result weekday.) and not Add Months (Add months; shows result weekday.). Choose this page when you need Shift by years and months together. If you stretch Add Years and Months into a neighbor’s job, the result will look wrong even though the site chrome looks the same.

How to use Add Years and Months

1. Confirm you need Add Years and Months, not Add Years (Add years; shows result weekday.). Address: /datetime/add-years-months.
2. Enter the numbers or dates Add Years and Months uses. Shift by years and months together.
3. Read the result as Add Years and Months defines it — not as Add Months (Add months; shows result weekday.). Adds years and months to a local date. Unlike Add Years or Add Months alone this takes both. Unlike Add Quarters this is free-form. Invalid dates fail.
4. Add Years and Months is an estimate in the browser, not professional advice. Local YMD, years, months.
5. Need a different formula? Try Add Months (Add months; shows result weekday.) instead of stretching Add Years and Months.

When not to use Add Years and Months

Skip Add Years and Months when a neighbor tool matches better — start with Add Years or Add Months — or when the description already warns the job will fail. In the tool’s own words: Adds years and months to a local date. Unlike Add Years or Add Months alone this takes both. Unlike Add Quarters this is free-form. Invalid dates fail.

Questions about Add Years and Months

What does Add Years and Months do that other Date & time pages on this site do not?

Adds years and months to a local date. Unlike Add Years or Add Months alone this takes both. Unlike Add Quarters this is free-form. Invalid dates fail. Short version: Shift by years and months together.

Does Add Years and Months upload my file or text to Tool-You servers?

No. Add Years and Months runs in this browser tab. Files stay on the device. Limit note: Local YMD, years, months.

Should I use Add Years instead of Add Years and Months?

Use Add Years and Months when you need Shift by years and months together. Use Add Years when you need Add years; shows result weekday. They share a category (Date & time) but not the same job.

What are the limits of Add Years and Months?

Local YMD, years, months. Also: Adds years and months to a local date. Unlike Add Years or Add Months alone this takes both. Unlike Add Quarters this is free-form. Invalid dates fail.