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parseMonthDayFromDateTime

Signature

Section titled “Signature”
parseMonthDayFromDateTime(value: string): string

Return the month-day (--MM-DD) of an ISO 8601 date-time string.

  • The year and the time are dropped, so the time never moves the day.
  • A Z or an offset gives ""; a time zone annotation with no offset is ignored, as isValidDateTime reads it.
  • Only the ISO calendar is read.
  • Returns "" for invalid input.

Parameters

Section titled “Parameters”
ParameterTypeDescription
valuestringISO date-time string

Returns

Section titled “Returns”

The canonical --MM-DD string, or "" on invalid input

Examples

Section titled “Examples”
import { parseMonthDayFromDateTime } from "@northguild/gmt/plain/parse";


parseMonthDayFromDateTime("2024-12-25T10:00:00") // "--12-25"
output 

Source

Section titled “Source”

plain/parse/parseMonthDayFromDateTime.ts

Code examples: MIT-0. Packages: MIT. Third-party data and components: their own licences, credited where they appear. Everything else:© 2026 NorthGuild, all rights reserved.