toRFC2822

Converts a date to RFC 2822 format Format: Day, DD Mon YYYY HH:mm:ss +0000 Used in email headers (Date field) and HTTP headers

Available since v2.0.0

Import

import { toRFC2822 } from '@helpers4/date';

toRFC2822(date: DateLike): string | null

Parameter	Type	Description
`date`	`DateLike`	Date to convert (Date object, timestamp, or date string)

string | null — RFC 2822 formatted string or null if invalid date

toRFC2822(new Date('2025-01-19T12:30:00Z')) // 'Sun, 19 Jan 2025 12:30:00 +0000'

A value that can be converted to a Date.

Date — used as-is (validated for Invalid Date)
number — treated as a timestamp (seconds or milliseconds, auto-detected); 0 is treated as invalid and produces null in ensureDate
string — parsed via new Date(string)
Temporal.Instant | Temporal.ZonedDateTime — read via their epochMilliseconds property

type DateLike = Date | number | string | Temporal.Instant | Temporal.ZonedDateTime