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YearFromTime.js 415B

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  1. 'use strict';
  2. var GetIntrinsic = require('../GetIntrinsic');
  3. var $Date = GetIntrinsic('%Date%');
  4. var callBound = require('../helpers/callBound');
  5. var $getUTCFullYear = callBound('Date.prototype.getUTCFullYear');
  6. // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
  7. module.exports = function YearFromTime(t) {
  8. // largest y such that this.TimeFromYear(y) <= t
  9. return $getUTCFullYear(new $Date(t));
  10. };