			}
						else {
							minEl.classList.remove( 'mute' );
						}
						secEl.innerHTML = ':' + zeroPadInteger( seconds );
					}

					function _updateTimer() {

						var diff, hours, minutes, seconds,
						now = new Date();

						diff = now.getTime() - start.getTime();

						clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
						_displayTime( hoursEl, minutesEl, secondsEl, diff );
						if (timings !== null) {
							_updatePacing(diff);
				