function firstTimerInRange(clock, from, to) {
				const timers = clock.timers;
				let timer = null;
				let id, isInRange;

				for (id in timers) {
					if (timers.hasOwnProperty(id)) {
						isInRange = inRange(from, to, timers[id]);

						if (
							isInRange &&
							(!timer || compareTimers(timer, timers[id]) === 1)
						) {
							timer = timers[id];
						}
					}
				}

				return timer;
			}
@param {Clock} clock
@param {number} from
@param {number} to

@returns {Timer}