Moment.js, custom date format and countdown from difference with callback

Question

I am using Moment.js for this. I tried looking docs but could find a solution that helps me at this scenario.

function countDown(scheduler){
  var time = moment().local("fi").format("L hh:mm:ss");

  console.log("Current time: "+time);
  console.log("Scheduler: "+scheduler);
  console.log("Difference: "+(time-scheduler));

}

Current time: 27.07.2017 12:23:21
Scheduler: 27.07.2017 12:16:31
Difference: NaN

I am trying to get the difference between time and scheduler , then return value as minutes and it should countdown to 0 and then fire callback function

I have no idea how to parse that time to an object. I know that I have to do that before I can get the difference.

EDIT 3:

  function countDown(scheduler){

    var time = moment();
    var schedulerMoment = moment(scheduler, "L hh:mm:ss");

    console.log("Current time: " + time.local("fi").format("L hh:mm:ss"));
    console.log("Scheduler: "+scheduler);
    console.log("Difference: "+(time.diff(schedulerMoment, "minutes")));
  }

• Current time: 07/27/2017 01:23:00
• Scheduler: 27.07.2017 12:55:14
• Difference: NaN

Answer 1

Creating moment object with custom format is supported

moment(time, format)

You can also get different in minutes like this

time.diff(scheduler, 'minutes')

So your code can look like this

function countDown(scheduler){
    var time = moment();
    var schedulerMoment = moment(scheduler, "DD.MM.YYYY hh:mm:ss");

    console.log("Current time: " + time.local("fi").format("L hh:mm:ss"));
    console.log("Scheduler: "+scheduler);
    console.log("Difference: "+(time.diff(schedulerMoment, "minutes")));
}

Answer 2

You can try this code :-

function countDown(schedule){ 
  var time = moment().local("fi").format("L hh:mm:ss");
  var schedule = new Date(schedule)
  var momentschedule = moment(schedule);
  console.log("Current time: "+time);
  console.log("Scheduler: "+schedule);
  var duration = moment.duration(momentschedule.diff(time));
 var minutes = duration.asMinutes();

  console.log("Difference: "+(minutes));
}
countDown("27.07.2017 12:16:31");//pass schedule date string