如何在JavaScript中将浮点值转换为日期时间格式

Question

I get a time difference from mongodb:

9.266666666666667

and rounded it off to two decimal places:

9.27

Now i want to format it to 00:00 time format. And i tried to format this using moment js:

moment(9.27).format('HH:mm')

But it returns:

08:00 

which is wrong.

It should be:

09:16

Anyone have ideas? Thank you.

Answer 1

我从这篇文章中找到了答案： 如何将十进制小时值转换为hh：mm：ss

var time_formatted = moment().startOf('day').add(parseFloat(9.266666666666667), "hours").format("hh:mm");

Answer 2

If 9.27 really needs to be translated into 09:27, you can parse it as a glued hour/minute: console.log(moment(9.27, "hhmm").format("HH:mm")) // 09:27

However, as others have pointed out, note that 9.27 hours is NOT 9h 27min.