Date and Time
This page describes various URI formats known to appear in Internet standards.
Grammars
- RFC 3339: Date and Time on the Internet — the most common standard, use this one
- RFC 9110: rule "IMF-fixdate": the date typically used in most HTTP headers
- RFC 9110: rule "obs-date": an obsolete format of date that only supports 2-year dates
- RFC 9110: rule "rfc850-date": another obsolete format that only supports 2-year dates
- ISO 8601: A more comprehensive standard for describing dates and times from which RFC 3339 derives