isValidDateTime

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Signature

isValidDateTime(value: string): boolean

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

Return true when value is a valid PlainDateTime string.

• Uses regex to check format before parsing.
• Rejects leap seconds (e.g., “2024-02-29T23:59:60”).
• Rejects invalid dates (e.g., “2024-02-30”) and invalid times (e.g., “2024-02-29T24:00:00”).

Parameters

Parameter	Type	Description
value	string	string candidate

Returns

boolean indicating whether the value is a valid PlainDateTime string

Examples

isValidDateTime("2024-02-29T12:34:56") // true
isValidDateTime("2024-02-30T12:34:56") // false (invalid date)
isValidDateTime("2024-02-29T24:00:00") // false (invalid time)
isValidDateTime("2024-02-29T23:59:60") // false (leap second)

Source

plain/validate/isValidDateTime.ts