Its ISO 8601 format

You can use Date.prototype.toISOString()

toISOString returns an UTC time. If you want to include the time offset you can use moment for that, passing true for keepOffset param:

console.log(moment().toISOString(true))

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>

In ISO Z is equivalent to +00:00. JS implementations nowadays always return UTC (Z) so this code is safe for an input of instance Date.

const d = new Date()

const toAVerySpecificFormat = (date) => {
  return date.toISOString().replace(/Z$/, "0000+00:00")
}

console.log(toAVerySpecificFormat(d))