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ISO Date Formatter

Format dates into multiple standard and custom formats

Current Date & Time

ISO: 2025-09-03T11:26:25.257+00:00
Locale: September 3, 2025 at 11:26 AM UTC
UTC: Wed, 03 Sep 2025 11:26:25 GMT
Supports: ISO dates, epoch timestamps (seconds/milliseconds), natural language, locale formats. Dates without timezone info are interpreted in the selected timezone context.

Selected Formats

ISO 8601
Standard international date format
2024-01-01T12:00:00.000Z
RFC 3339
Internet date/time format
2024-01-01T12:00:00+00:00
RFC 2822
Email date format
Mon, 01 Jan 2024 12:00:00 +0000
HTTP Date
HTTP header date format
Mon, 01 Jan 2024 12:00:00 GMT
SQL DateTime
SQL database format
2024-01-01 12:00:00
Locale String
Localized date format
1/1/2024, 12:00:00 PM
Locale Short
Short localized format
1/1/24, 12:00 PM
Locale Medium
Medium localized format
Jan 1, 2024, 12:00:00 PM
Unix Timestamp (seconds)
Unix epoch in seconds
1704110400
Unix Timestamp (ms)
Unix epoch in milliseconds
1704110400000
Custom Format
User-defined format pattern
yyyy-MM-dd HH:mm:ss
Local
107 timezones available. Type to search by region or city name. Select timezone before entering dates for accurate interpretation.

Format History

No formats yet

Format Reference

Input Examples:

  • • ISO 8601: 2024-01-01T12:00:00Z
  • • Simple: 2024-01-01 12:00:00
  • • US format: 7/3/2025, 7:37 PM
  • • European: 03/07/2025 19:37
  • • Epoch seconds: 1704110400
  • • Epoch milliseconds: 1704110400000
  • • Natural: January 1, 2024 12:00 PM
  • • RFC 2822: Mon, 01 Jan 2024 12:00:00 +0000
  • • SQL format: 2024-01-01 12:00:00
💡 Tip: Select your target timezone first, then enter the date. Times without timezone info will be interpreted in the selected timezone context.

Custom Tokens (Luxon):

  • • yyyy - 4-digit year
  • • MM - 2-digit month
  • • dd - 2-digit day
  • • HH - 2-digit hour (24h)
  • • mm - 2-digit minute
  • • ss - 2-digit second
  • • SSS - 3-digit millisecond
  • • MMM - short month name
  • • MMMM - full month name
  • • EEEE - full weekday name

Standards:

  • • ISO 8601: International standard
  • • RFC 3339: Internet timestamp
  • • RFC 2822: Email date format
  • • HTTP: Web server headers
  • • SQL: Database format
  • • Unix: Epoch timestamps

ISO Date Formatter - Date Format Converter

ISO 8601 standardizes how dates and times are represented in text, enabling unambiguous parsing across systems. This page formats and converts timestamps so your APIs and logs remain consistent.

What is ISO 8601?

ISO 8601 covers calendar dates (YYYY‑MM‑DD), times (hh:mm:ss), timezones (Z or ±hh:mm), and combined date‑time forms (YYYY‑MM‑DDThh:mm:ssZ). Using these forms avoids locale‑specific ambiguity like month/day vs. day/month.

How formatting works

Enter a date or paste a timestamp; the tool parses and re‑emits it in chosen ISO variants. It also converts between UTC and specific timezones and normalizes edge cases such as missing timezone offsets or fractional seconds.

About the ISO Date Formatter

Use it to ensure API payloads, database fields, and logs present consistent, machine‑readable timestamps. Standardization reduces parsing bugs and simplifies integrations across languages and platforms.

Adopting ISO 8601 across services prevents subtle bugs and ambiguous time handling. Validate conversions during integration and testing.