Write a function in javascript that determines the angle between the second and hour hand on a clock given a time.

Question

Rod Lai · Accepted Answer

I'm no JS expert, but first of all I think they'd ask for the minute and hour hands, and not the second hand, otherwise you can't get an accurate measurement of the hour hand degrees:

//Difference between minutes and hour hands in degrees
function translateTime(minutes,hours) {
  var degreesMin = (minutes/60) * 360;
  var degreesHr  = (((hours%12)/12)+(minutes/60)*(1/12)) * 360
  return (degreesHr-degreesMin)%360;
}

var output = translateTime(30,3);
console.log(output);

Liz · Answer

I know this is an old question - but timeless! For the difference in the angle between the hour and minutes would be: 

function translateTime(minutes,hours) {
  degreesMin = (minutes/60) * 360;
  degreesHr = (hours/12) * 360;
  return Math.abs(degreesHr-degreesMin);
}

console.log(translateTime(30,3));  // 90
console.log(translateTime(5,11));  // 300

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