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Datetime

July 9, 2021

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UTC Now
Timezone

Luxon: A powerful, immutable, and friendly wrapper for Javascript dates and times.
Moment: Parse, validate, manipulate, and display dates in javascript.
Luxon For Moment users

UTC Now

const nativeUtcNow = new Date().toISOString();
const luxonUtcNow = DateTime.utc().toISO();
const momentUtcNow = moment().toISOString();

Timezone

Convert local time to utc given a timezone

json

const zone = "America/Chicago"
const datetime = "2019-07-09T18:45"
// luxon
DateTime.fromISO(datetime, { zone })
  .toUTC()
  .toISO()
// moment
moment.tz(datetime, zone).utc().toISOString();

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