HamClock has reached the end of life with the passing of the creator, Elwood Downey, WB0OEM. The back end server which provided the data for the HamClock will shut down in June of 2026. At that point all HamClock instances will be rendered inoperable.
The news of this has prompted several amateur radio developers to create an open source system
Open Hamclk can be run on your local system or can be run on a web based server https://openhamclock.com
The program can also be run on your local network via a linux device (Raspberry Pi) or in a Windows Docker environment. Go to https://github.com/accius/openhamclock to read the install instructions.