endOfDay()

endOfDay(input): Date

Defined in: utils/date/startEndOfDay.ts:68

Get the end of the day (local time) for a given date-like value.

This helper:

• Accepts Date, ISO-like string, or timestamp number.
• Converts the value via toDateStrict.
• Returns a new Date instance set to 23:59:59.999 local time.
• Never mutates the input Date.

Parameters

input

Date-like value representing the day you want to normalize.

string | number | Date

Returns

Date

A new Date object at local end-of-day (23:59:59.999) of that day.

Throws

When input cannot be converted into a valid Date (as determined by toDateStrict).

Example

const d = new Date(2024, 0, 10, 5, 0, 0); // 2024-01-10 05:00:00
const end = endOfDay(d);
// end -> 2024-01-10 23:59:59.999 (local time)