This is an alarm clock realized by batchfile. This idea is from the book The Pomodoro Technique (gooood book).

start the clock

start.bat

del the schtask

deltask.bat

query the Tasks list

schtasks /Query [/TN taskname]

change the default clock time you want change it in function.bat , it's easy , you know how to do it.

1. 2018/9 初始版本
2. 2018/12 复用性更好 可以比较 function/2 两个版本

There are two .ico from here that can be used as desktop icons.