date-fns/esm/_lib/getUTCDayOfYear/index.js

Modern JavaScript date utility library

import toDate from "../../toDate/index.js";
import requiredArgs from "../requiredArgs/index.js";
var MILLISECONDS_IN_DAY = 86400000; // This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376

export default function getUTCDayOfYear(dirtyDate) {
  requiredArgs(1, arguments);
  var date = toDate(dirtyDate);
  var timestamp = date.getTime();
  date.setUTCMonth(0, 1);
  date.setUTCHours(0, 0, 0, 0);
  var startOfYearTimestamp = date.getTime();
  var difference = timestamp - startOfYearTimestamp;
  return Math.floor(difference / MILLISECONDS_IN_DAY) + 1;
}