How to convert provided number of hours into days hours minutes in javascript?

I have an input hours which will be 0 to any hours, for example

25 hours... I need an output in days hours and minutes: 1 day 1 hour 0 min

I have tried and it returns days but help me to convert to days hrs and min var flag_hours = 25;

if(flag_hours >=24)
{
     var totaldays = flag_bookbefore/24;
     alert(totaldays);
}

which gives output as : 1.0416666666666667

Thanks in advance!