Time Now Class Next Signal Time to Go
Before Warning Before Start
Attention Warning Prep Up Prep Down Class Interval
Class List
Enter the names of the classes in the adjacent box
One start per line.
Clock Setting
To set the clock to an exact minute click one of these buttons

First Warning signal time
:

First set the start sequence interval times, then set the time of the first warning signal.
When you press the "Set" button the times of all the signals will be calculated.
The countdown to the first signal will start, and the queue of events will be shown.
When each countdown has finished the next event will be removed from the queue and it's countdown started.