rentLeft = leftMost;
        let currentHour = startHour - timeSpan;
        let previousDate = this.formatDate(currentHour);
        let indicators = [{
            date: previousDate,
            shouldShowDate: true,
            time: this.formatTime(currentHour),
            left: currentLeft
        }]

        // The rightmost indicator is hardcoded.
        for (let i=0;i<(numIndicators - 1);i++) {
          let addedSlots = numSlotsPerOneIndicator;
          addedSlots += (i < (numSlots % numIndicat