Here comes the sun[light]: An ambient Daylight Clock with time and space controls

A hobbyist builder has released the Daylight Clock, a 24-hour analog timepiece whose edge lighting tracks the actual daylight span for a chosen latitude and longitude, paired with a custom control box for adjusting time and location. The controller advances time in one-week increments per click, uses a vertical slider mapped to an Equal Earth world map for latitude, and a three-way toggle for position within a time zone. The project draws on daylight-calculation code from a friend’s earlier daylight-aware clock, with the builder citing a long-standing frustration over living on the western edge of the Eastern Time Zone in Michigan. It matters as a small example of ambient hardware design that pushes timekeeping beyond the standard 12-hour dial toward location-aware displays. What to watch next is whether the design spreads among other hobbyists or inspires commercial desk clocks with similar daylight visualization.