A very usefull and accurate stopwatch that allow you to do lap times, it count the time between hiting the start button and the stop button, you can also get the time for each lap.clear laps and start counting again, the application can be customised by changing the color of the application by using the bottom left buttons for each color.

A stopwatch is a handheld timepiece designed to measure the amount of time that elapses between its activation and deactivation, A large digital version of a stopwatch designed for viewing at a distance as in a sports stadium is called a stop clock. In manual timing the clock is started and stopped by a person pressing a button, in fully automatic time both starting and stopping are triggered automatically by sensors.

The timing functions are traditionally controlled by two buttons on the case pressing the top button starts the timer running and pressing the button a second time stops it leaving the elapsed time display a press of the second button then resets the stopwatch to zero, the second button is also used to record split times or lap times when the split time button is pressed while the watch is running the display freezes then starts then freezes again allowing the elapsed time to that point to be read but the watch mechanism continues running to record total elapsed time, pressing the split button a second time allows the watch to resume display of total time mechanical.

Stop watches are powered by a mainspring which must be periodically wound up by turning the knurled knob at the top of the watch, Digital electronic stop watches are available which due to their crystal oscillator timing element are much more accurate than mechanical timepieces because they contain a microchip they often include date and time of day functions as well some may have a connector for external sensors allowing the stopwatch to be triggered by external events thus measuring a elapsed time far more accurately than is possible by pressing the buttons with one's finger stop watches that count by 1/100 of a second are commonly mistaken as counting milliseconds rather than centa seconds.

The first digital timer used in organized sports was the digit timer developed by Cox electronic systems Inc of Salt Lake City Utah it utilized a Nixie tube readout and provided a resolution of one 1,000 second its first use was in ski racing but was later used by the World University Games in Moscow Russia the u.s. n-c-double-a and in the Olympic Trials the device is used when time periods must be measured precisely and with a minimum of complications laboratory experiments and sporting events like sprints are good examples the stopwatch function is also present as an additional function of many electronic devices such as wristwatches cell phones portable music players and computers

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