Date / Time Calculator

Add or subtract days, weeks, months, years. Difference between two dates. Date in N days. Local and UTC.

X LinkedIn

From date

Amount

Unit

Result

iso

2026-06-09T21:11:37.000Z

utc

Tue, 09 Jun 2026 21:11:37 GMT

local

6/9/2026, 9:11:37 PM

date

6/9/2026

time

9:11:37 PM

Month and year arithmetic respect calendar rules (e.g. Jan 31 + 1 month = Feb 28/29). All in your browser.

Frequently Asked Questions

Adding a month uses calendar rules: e.g. Jan 31 + 1 month = Feb 28 (or Feb 29 in a leap year).

The tool shows both local and UTC. Your browser's local timezone is used for "local" output.

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