1 — Technical

Date Calculator

Find the exact difference between two dates, or add and subtract any number of days, weeks, months, or years from a date. Runs entirely in your browser.

Select both dates to see the difference.

Business day planning

Need to know how many days until a deadline, or what date falls 90 days from contract signing? The date difference and add/subtract modes cover both.

Month-end behaviour

Adding one month to January 31st gives February 28th (or 29th in a leap year) — the calculator handles month-end edge cases correctly.

Time breakdowns

The difference view shows total days, weeks, hours, and minutes alongside the years/months/days breakdown — useful for SLA calculations and project planning.

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