Марат Гарифуллин

function setupEvent(into, base) {
  const d = new Date();
  const mskTimeZone = - 3 * 60; // в минутах

  let timezone = d.getTimezoneOffset();
  if (timezone !== mskTimeZone) {
    timezone = timezone - mskTimeZone;
    d.setTime(d.getTime() + timezone * 60 * 1000);
  }

  const day = d.getDay();
  const h = d.getHours();
  let resp = 'n/a';

  const data = getEventByDay(base, day, h);

  resp = '' + data[3] + '';
  document.getElementById(into).innerHTML = resp;
}