An analog clock is a timekeeping device that uses moving hands to display the time. The longest hand indicates the seconds, the longer one indicates the minutes while the smallest one indicates the hours.
Stopwatch
timer
a watch which can be started and stopped by pressing a button, so that you can measure exactly how long something takes
Timer
hourglass_empty
A timer or countdown timer is a type of clock that starts from a specified time duration and stops when reaching zero. A simple timer is an hourglass. Commonly, a timer would raise an alarm when it ends.