I'm sharing this for others to use!
Use this Media Still Image URL:
bgcolor (background color - hex color without #)
fgcolor (foreground color - hex color without #)
timeformat=24 (For 24 hour time)
offset= (number of minutes, positive or negative)
Please set the refresh time to at least every 12 hours (43200 seconds) to be nice to my server.
Customer support service by UserEcho