joekoop.comjkproject › passive audible clock

This page will beep at predictable times. See the time table below.

Due to some security stuff, you have to press this button to start the clock:

The time now:

Time Beep
1:00, 5:00, 9:00, etc. long
2:00, 6:00, 10:00, etc. long, short
3:00, 7:00, 11:00, etc. long, short, short
4:00, 8:00, 12:00, etc. long, short, short, short
x:20 short
x:40 short, short

Source code

this page last changed 2022 apr 23