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Date Format Converter

Convert dates to ISO 8601, US, EU, RFC 2822, Unix timestamp, and custom formats.

ISO 8601YYYY-MM-DD2026-05-28
US (MM/DD/YYYY)MM/DD/YYYY05/28/2026
EU (DD/MM/YYYY)DD/MM/YYYY28/05/2026
Long (Month D, YYYY)MMMM D, YYYY5ay 28, 2026
Short (Mon D, YY)MMM D, YY5ay 28, 26
With TimeYYYY-MM-DD HH:mm:ss2026-05-28 05:07:00
RFC 2822ddd, DD MMM YYYY HH:mm:ss ZZThu, 28 5ay 2026 05:07:00 +0000
Unix TimestampX1779944820
Millisecondsx1779944820000
2026-05-28 05:07:00

Tokens: YYYY (year), MM (month), DD (day), HH (hour 24h), mm (minutes), ss (seconds), MMMM (full month), MMM (short month), ddd (short day), dddd (full day), X (unix), x (ms)

About This Tool

The Date Format Converter transforms a date/time into the most common formats used in software, business, and publishing. Select a date and see all preset formats at once, or enter a custom format pattern using moment.js-style tokens.

All conversions happen instantly in your browser using the local timezone. No data is sent to any server.

How to Use

  1. Enter or pick a date and time in the input field, or click Now for the current time.
  2. View all preset formats β€” ISO 8601, US, EU, Long, Short, With Time, RFC 2822, Unix, and Milliseconds.
  3. Click Copy on any format row to copy the result to your clipboard.
  4. Enter a custom format pattern in the Custom Format field for non-standard output.

Use Cases

Developers convert dates for API payloads (ISO 8601), database storage (Unix timestamp), or display strings. Content writers format dates for different regional audiences. Data analysts reformat dates before importing into spreadsheets.

FAQ

  • What is ISO 8601? β€” YYYY-MM-DD is the international standard for date representation. It is unambiguous and sorts correctly as a string.
  • What is a Unix timestamp? β€” The number of seconds since January 1, 1970, 00:00:00 UTC. Widely used in APIs, databases, and log files.