Company ensures accurate job reporting, employee compensation with PoE clock with buzzer.


When a small Midwestern manufacturing company was founded in 1977, employees used punch card time clocks. However, the owner spent $200-300 every few years to replace and repair all of them. Eventually, he stopped replacing the clocks and instituted an honor system for employee start and stop times, lunches and breaks.


Some employees were diligent about working the required hours, as well as taking breaks and lunches on time, but others were not. Although the owner set his watch, vehicle clock and office clock to the same time, he still had to go out onto the shop floor regularly and manually synchronize all of the analog battery clocks.

The owner then learned that some employees had adjusted the shop floor clocks so that they ran fast. In addition, he caught some employees shutting down equipment 15 minutes before the official quitting time, and lunch breaks were lasting longer than they should have lasted. This time theft drove the owner to seek out an accurate clock system that could not be altered.


The IT director and owner selected a Power over Ethernet buzzer clock from American Time. These types of clocks draw both power and time updates from the company’s Ethernet connection. They are energy efficient and eliminate the need for AC receptacles and individual batteries. There is no master clock or serial connection required, and the PoE network clocks update automatically for daylight saving time changes.

The PoE clocks with buzzers indicate the start and end time of shifts, breaks and lunches. Time is attributed to each job, so time stamps are consistent and accurate throughout the facility.


The PoE buzzer clock was installed in the shop has been an enormous help with employee accountability and punctuality, as well as more accurate job reporting.

“I’ve been very happy with the new clock,” said the owner. “Now that there is an accurate way to determine the start and end times of shifts, my employee compensation is more accurate. I estimate that the clock paid for itself in the first three or four months that we had it.”