Data ISO e fuso horário

  toIsoString(date) {
    const tzo = -date.getTimezoneOffset();
    const dif = tzo >= 0 ? '+' : '-';
    const pad = function (num) {
      return (num < 10 ? '0' : '') + num;
    };

    return (
      `${date.getFullYear()
      }-${
        pad(date.getMonth() + 1)
      }-${
        pad(date.getDate())
      }T${
        pad(date.getHours())
      }:${
        pad(date.getMinutes())
      }:${
        pad(date.getSeconds())
      }Z${
        dif
      }${pad(Math.floor(Math.abs(tzo) / 60))
      }:${
        pad(Math.abs(tzo) % 60)}`
    );
  }
Damon