About Date Calculator

Date Calculator is a free online tool that answers the small date questions that come up every day: how many days are between two dates, what date is 30 days from now, how many days until a birthday or a deadline, exactly how old someone is, and how many working days are in a period. It was made by Anees Ur Rehman for everyone who needs a date answer they can trust — with the working shown, so every result can be checked.

Every answer is worked out exactly, using UTC dates so the result never shifts with your timezone or daylight saving. Leap years are handled correctly — 28 February 2024 to 1 March 2024 is 2 days, because 2024 has a 29 February. For example, 1 January 2026 to 13 November 2026 is exactly 316 days (45 weeks and 1 day), 13 November 2026 plus 30 days is 13 December 2026 (a Sunday), and from 13 November 2026 there are 49 days until 1 January 2027. The age calculator counts full years, then full months, then the days left over: born 20 February 2003, on 13 November 2026 you are 23 years, 8 months and 24 days old — 8,667 days in total.

Date Calculator is free forever. There is no account, no sign-up, no install and no limit. Your dates are calculated in your browser and never sent to any server. The site is supported by advertising (Google AdSense) — the ads keep the tool free, and you can choose personalised or non-personalised ads with the cookie banner at the bottom of the page.

An honest note about months and years

The day count is always exact. But months are 28 to 31 days long and years are 365 or 366 days, so a day count can only be turned into months or years approximately. The calculator labels those breakdowns clearly, and always shows the exact breakdown in weeks and days as well — 316 days is exactly 45 weeks and 1 day. The weekdays-only count includes both end dates and counts Monday to Friday only; public holidays are not removed, and the page says so plainly.

Who made Date Calculator?

Date Calculator is made by Anees Ur Rehman, who also runs ToolKamai (free online tools), AI Creator Studio (free AI tools), Percentage Calculator, Discount Calculator, Sleep Calculator and EMI Calculator. If a calculation looks wrong, or you want another calculator added, please contact us — every message is read.