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Date & Time · free tool

Sort Calendar Dates

Sort a list of dates from earliest to latest, in ISO, US or day-first formats.

Use it as often as you like — it's free, with no sign-up and no limits.

Try it free
  • Date & Time
  • Free
  • No sign-up
  • Runs in your browser
  • Updated
0 characters

Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us.

How to use the Sort Calendar Dates

  1. Enter or paste your input in the box (or set the options, if the tool needs no input).
  2. Adjust the options to match what you need — the result updates as you type.
  3. Copy the result or download it, and keep editing if you want a different outcome.

What does this tool do?

Paste one date per line in formats such as 2025-03-09, 03/09/2025 or March 9, 2025. Choose whether slashed dates are month-first or day-first, sort oldest-first or newest-first, and optionally convert every date to ISO format.

Everything runs in your browser, so nothing you enter is uploaded or stored.

Why use it?

  • Free, with no sign-up and no limits.
  • Instant results as you type.
  • Private — your data stays on your device.

Example

Input: 2025-03-09
2024-12-31
2025-01-15
Result: 2024-12-31
2025-01-15
2025-03-09

Privacy

Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us. There's no account to create and nothing to install.

Frequently asked questions

How does it read 03/09/2025?

As March 9 by default (US). Switch to day-first to read it as 3 September.

Is the Sort Calendar Dates free to use?

Yes. It is free, needs no account and has no daily limit.

Last reviewed by the M2Toolkit team.

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