Day return is incorrect with format

[dalenguyen]

Describe the bug
A clear and concise description of what the bug is.

I'm trying to convert a date to a readable format.

For example:

var dayjs = require('dayjs')

const date = '1989-08-12T01:00:00.000Z'
console.log(dayjs(date).format('DD/MM/YYYY'))

The result shows: 11/08/1989

Expected behavior
A clear and concise description of what you expected to happen.

I expect that the log should return 12/08/1989 instead of 11/08/1989

Not sure if I miss any parameters or not. Thanks,

Information

• Day.js Version [e.g. v1.0.0]: v1.8.16
• OS: [e.g. iOS]: MacOS
• Browser [e.g. chrome 62]
• Time zone: [e.g. GMT-07:00 DST (Pacific Daylight Time)]

[iamkun]

Dayjs will parse date to local time by default.

If you want to get time in utc, please use dayjs.utc

var dayjs = require("dayjs")
var utc = require("dayjs/plugin/utc")
dayjs.extend(utc)
const date = '1989-08-12T01:00:00.000Z'
console.log(dayjs(date).format()) // "1989-08-12T10:00:00+09:00"

const date2 = '1989-08-12T01:00:00.000Z'
console.log(dayjs.utc(date2).format()) "1989-08-12T01:00:00Z"

[dalenguyen]

Thanks @iamkun. And this is for TypeScript usage

import * as dayjs from 'dayjs'
import * as utc from 'dayjs/plugin/utc'
dayjs.extend(utc)