Check time difference in Javascript

Question

How would you check time difference from two text-boxes in Javascript?

Answer 1

In my case, I'm gonna store the time in milliseconds on chrome storage and try to find diff in hours later.

function timeDiffInHours(milliseconds){
    time_diff = (new Date).getTime() - milliseconds
    return parseInt((time_diff/(1000*60*60)) % 24)
}

// This is again sending current time and diff would be 0.
timeDiffInHours((new Date).getTime());