effect-io-ai

Package: effect
Module: DateTime

DateTime.setParts

Sets time-zone-adjusted parts on a DateTime.

Details

The date will be time zone adjusted for DateTime.Zoned.

Example (Updating DateTime parts)

import { DateTime } from "effect"

const dt = DateTime.makeUnsafe("2024-01-01T12:00:00Z")
const updated = DateTime.setParts(dt, {
  year: 2025,
  month: 6,
  day: 15
})

console.log(DateTime.formatIso(updated)) // "2025-06-15T12:00:00.000Z"

Signature

declare const setParts: { (parts: Partial<DateTime.PartsWithWeekday>): <A extends DateTime>(self: A) => A; <A extends DateTime>(self: A, parts: Partial<DateTime.PartsWithWeekday>): A; }

Source

Since v3.6.0