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Cover image for Day 37: Time Format Converter

Day 37: Time Format Converter

mattryanmtl profile image Matt Ryan ・1 min read
const timeConverter = time12h => {
  const [time, modifier] = time12h.split(" ");

  let [hours, minutes] = time.split(":");

  if (hours === "12") {
    hours = "00";
  }

  if (modifier === "PM") {
    hours = parseInt(hours, 10) + 12;
  }

  return `${hours}:${minutes}`;
};
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Console output:
Alt Text

Of course, instead of using a custom function, you can simply use moment.js.

With moment.js, the same function can be reduced to a single variable in a single line of code:

var timeConverter = moment("05:00 PM", 'hh:mm A').format('HH:mm')
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