A free program for Android, by Javier Salmona.

If you want to record the time of any event in your life, you need a reliable, easy, and affordable way to measure it. The best way to do that is with the Stopwatch Timer app. With it, you can measure the time of any event, like sports, cooking, games, education, etc. 

Stopwatch or chronometer mode:

Start and stop the stopwatch by pressing the button on the center of the screen. You can see the elapsed time on the top digital display and on the analog view like and old-school stopwatch. To record a lap, press the left button. A lap hand will be added to the analog view, and to reset, press the right button. The buttons are placed to use one hand only.

Laps List:

You can access the lap list with the dropdown menu on the top or just sliding your finger to the left. On this lap list, you can choose to see the lap time or total time. Lap List can be saved to the sd card, shared to social media, or be emailed.