One billionth of a second stopwatch (With a game)

This is a stopwatch which can be displayed till one billionth of a second.

In addition to a stopwatch function, Quick touch game and Round number game can be enjoyed.

Quick touch game is a game which stops a stopwatch quickly.
A start button and a stop button are already displayed simultaneously.
Please push two buttons almost simultaneous. (Please push a start button early a little merely. )

Round number game is a game which aims at the below decimal point zero of seconds, such as exactly 5 seconds and exactly 8 seconds.

Please enjoy short time for a long time.

※ According to the throughput of CPU, a similar numerical value may be displayed about under in the tenths of millionths of a second .

※ In the Game Center, the time of Round number game is displayed in the unit of a nano second. (one nanosecond is one billionth of a second.)