I am getting this error.

TypeError: dayjs(...).tz is not a function

My code is

const dayjs = require('dayjs');

const dayjsAmerica = dayjs("2014-06-01 12:00").tz("America/New_York");

I am getting this error.

TypeError: dayjs(...).tz is not a function

My code is

const dayjs = require('dayjs');

const dayjsAmerica = dayjs("2014-06-01 12:00").tz("America/New_York");

• javascript
• node.js
• timezone
• dayjs

Share Improve this question Follow edited Dec 13, 2022 at 5:52 Srikanth asked Dec 13, 2022 at 5:26 SrikanthSrikanth 33911 gold badge33 silver badges1010 bronze badges 1

• You can tick Answer your own question – share your knowledge, Q&A-style when posting this. – wei Commented Dec 13, 2022 at 5:30

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2 Answers 2

Sorted by: Reset to default 3

You need to extend the dayjs class with the utc and timezone classes/plugins:

const dayjs = require('dayjs');
const utc = require('dayjs/plugin/utc');
const timezone = require('dayjs/plugin/timezone');
dayjs.extend(utc);
dayjs.extend(timezone);

Refer to docs for more details: https://day.js/docs/en/timezone/timezone

this worked also for me as @kandula

npm install dayjs

const dayjs = require('dayjs');

const utc = require('dayjs/plugin/utc');

const timezone = require('dayjs/plugin/timezone');

dayjs.extend(utc); dayjs.extend(timezone);