SmabrSP가 지금 열리는 토너먼트가 대란투인지 1on1인지 판단하는 스크립트를 만들었어요.

javascript:(
  function(){
    let basis = new Date(2020, 9, 31, 15, 0, 0);
    let now = new Date();
    let elapsed = now - basis;
    let range = 48 * 60 * 60 * 1000;
    let quotient = elapsed / range;
    let digit = Math.floor(quotient) % 2;
    let result = '1 on 1';
    if (!digit) {
      result = '大乱闘';
    }
    let remainder = elapsed % range;
    let until = new Date(now.getTime() + range - remainder);
    let day = ['Sun.', 'Mon.', 'Tue.', 'Wed.', 'Thu.', 'Fri.', 'Sat.'];
    result += ` until: ${until.getMonth() + 1}/${until.getDate()} (${day[until.getDay()]}) ${until.getHours()}:${('0'+until.getMinutes()).slice(-2)}`;
    alert(result);
  }
)();