tiempo

isSameMillisecond

Check if two datetimes are in the same millisecond

Returns true if both datetimes are in the same millisecond.

Signature

function isSameMillisecond(
  date1: Temporal.Instant | Temporal.ZonedDateTime,
  date2: Temporal.Instant | Temporal.ZonedDateTime
): boolean

Example

import { isSameMillisecond } from '@gobrand/tiempo';

const time1 = Temporal.ZonedDateTime.from('2025-01-20T15:30:45.123456Z[UTC]');
const time2 = Temporal.ZonedDateTime.from('2025-01-20T15:30:45.123999Z[UTC]');
const time3 = Temporal.ZonedDateTime.from('2025-01-20T15:30:45.124000Z[UTC]');

isSameMillisecond(time1, time2); // true (both at .123xxx)
isSameMillisecond(time1, time3); // false (different millisecond)

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