const event = new Date('December 31, 1975 23:15:30 GMT-3:00');
console.log(event.getUTCFullYear());
// expected output: 1976
console.log(event.toUTCString());
// expected output: Thu, 01 Jan 1976 02:15:30 GMT
event.setUTCFullYear(1975);
console.log(event.toUTCString());
// expected output: Wed, 01 Jan 1975 02:15:30 GMT