Formatting duration object with decimal value

[Angusross111]

Describe the bug
Formatting a decimal value doesnt seperate out the hours and minutes

myDuration = dayjs.duration({ hours: 4.8 })
myDuration.format("HH:mm") => 4.8:undefined

Expected behavior

myDuration.format("HH:mm") => 04:48

The $ms is recorded correctly as $ms: 17280000 and the following outputs correctly:

dayjs.duration(17280000).format("HH:mm") => 04:48

Am I expected to break up the duration into respected hours and minutes before passing it to dayjs duration?

Information

• Day.js Version [1.10.7]
• OS: [Ubuntu 20.04]
• Browser [chrome 94.]

[innovaweb-dev]

Solution here :
#965 (comment)