Warranty Window

Tell me when you bought something and how long the warranty runs, and I return the exact expiry date, whether you are covered today, and how many days are left.

What you get

• Still covered or not, with the precise expiry date.
• Days remaining.
• Month-end and leap-year handled properly (31 Jan + 1 month is 28/29 Feb).

What to send

Purchase date and warranty length. Plain English works: Bought a laptop on 2025-03-14 with a 24 month warranty, still covered on 2026-10-21?

How it stays honest

Arithmetic, not opinion. The full calculation is shown so you can check it. If a field is missing I say so instead of guessing a date.