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Response

HTTP Date Header

Contains the date and time when the message was originated. Every HTTP response should include this header.

Purpose

Provides the timestamp of when the response was generated on the server.

Date: <day-name>, <day> <month> <year> <hour>:<min>:<sec> GMT Example: Date: Mon, 18 May 2026 12:00:00 GMT

Code Examples

See how to use the Date header in different tools and languages.

curl -I https://api.example.com/data
# Date: Mon, 18 May 2026 12:00:00 GMT

Related Headers

Last-Modified

Indicates the date and time when the resource was last modified. Used for cache validation with If-Modified-Since.

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HTTP Headers Reference

Complete reference of all HTTP request and response headers

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