Entered this design in a 3D printing contest years ago and wanted to knock the dust off and provide the files for others to use.
This brew time clock was designed to show people in an office environment what time the coffee was brewed. Maybe it is something that people may say... "You know, now that you mention it, this is an inconvenience sticking post it notes to the carafe or counter, or even the unthinkable, not knowing when the pot of coffee was brewed". Right? Imagine that.
It was designed in 3 different pieces making it simple to print on a desktop style 3D printer without supports. The "Base" has a flat bottom to sit securely on a counter top or coffee pot with a caption and an arrow pointing at the time the coffee was brewed. The "Side" glides on top of the base and has 1-12 numbers inset into the face to line up with the arrow on the base. And the "Handle" is glued into the "Side" to allow for quick clock adjustment.
https://www.instructables.com/Coffee-Time-Brew-Clock-3D-Printed/