isValidTime

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Signature

isValidTime(value: string): boolean

import { isValidTime } from "@northguild/gmt/plain/validate";

Return true when value is a valid ISO PlainTime string.

• Uses regex to check format before parsing.
• Rejects leap seconds (e.g., “23:59:60”).
• Rejects invalid times (e.g., “24:00:00”, “23:60:00”).

Parameters

Parameter	Type	Description
value	string	ISO PlainTime string

Returns

boolean indicating validity

Examples

isValidTime("12:34:56") // true
isValidTime("24:00:00") // false (invalid hour)
isValidTime("23:60:00") // false (invalid minute)
isValidTime("23:59:60") // false (leap second)

Source

plain/validate/isValidTime.ts