Operation

The SEL button selects what is to be displayed, and the CTL button controls the timers.

Pressing SEL sequentially selects to display Local Time, GMT , Elapsed Time, and back to Local Time. In the bottom segment of the display a dot points to the selected display LT, GMT, or ET.

ET starts counting when you click on control butoon while ET is selected (the dot is above ET)

The CTL button stops, resets and starts again Elapsed Time when clicked sequentially, if ET is selected.

Elapsed Time counts up to 59 minutes, 59 seconds, and then switches to hours and minutes.