RFC 2822 Date Converter

Convert any date to RFC 2822 format — the standard for email Date headers.

Date or timestamp

Timezone

RFC 2822

Sat, 25 Jul 2026 13:27:05 -0400

Email Date header format. Includes day-of-week, numeric timezone offset.

RFC 2822 (UTC)

Sat, 25 Jul 2026 17:27:05 +0000

Same format forced to +0000 (UTC/GMT).

ISO 8601

2026-07-25T17:27:05.144Z

The modern alternative. Preferred for APIs and data interchange.

What is RFC 2822?

RFC 2822 defines the format for email message headers. The Date header uses the pattern: Day, DD Mon YYYY HH:MM:SS +HHMM. Example: Mon, 15 Jul 2024 14:00:00 +0200. It superseded RFC 822 and is itself referenced by RFC 5322 (the current email standard).

Where RFC 2822 Dates Appear

Email headers

Date: header in SMTP/MIME messages

RSS feeds

<pubDate> element in RSS 2.0

HTTP (legacy)

Older servers used RFC 2822 before RFC 7231 standardized IMF-fixdate

Git commits

Author/committer date in raw commit objects

RFC 2822 vs ISO 8601

RFC 2822 is human-readable but harder to parse and sort. ISO 8601 sorts lexicographically and is unambiguous. Use RFC 2822 only where protocols require it (email, RSS). For APIs and databases, prefer ISO 8601.