isoWeek() returns wrong value in utc mode

[AoDev]

Describe the bug
isoWeek() should return a number between 1 and 53 but it seems to have problems in utc mode.

import dayjs from 'dayjs'
import isoWeek from 'dayjs/plugin/isoWeek.js'
import utc from 'dayjs/plugin/utc.js'

dayjs.extend(isoWeek)
dayjs.extend(utc)

// 1577836800000 is timestamp for Wednesday, 1 January 2020 00:00:00 UTC

console.log(dayjs(1577836800000).isoWeek()) // -> 1
console.log(dayjs.utc(1577836800000).isoWeek()) // -> 3600001

Expected behavior

I would expect 1 in that case.

Information

• Day.js Version 1.8.32
• OS: OSX Mojave
• Nodejs 12.16.1
• Time zone: UTC + 2

[iamkun]

thanks, it's a bug

[iamkun]

🎉 This issue has been resolved in version 1.8.33 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀