Beer clock.

Here is another clock face to go along with my CoffeeTime clock.
https://www.thingiverse.com/thing:3260433

If you have an existing clock, like a 300mm one, print this at 285mm diam, 2mm high, 0.2mm layers. This gives 10 layers total.

Add a pause between layer 7 and 8 to change the colour.

G1 F3600 X193.893 Y200.318 E2668.29466 <<< last line of layer 7

; begin layer pause code
G91 ; Put in relative mode
G1 Z10 ; Lower bed by 10mm
G90 ; Put back in absolute mode
G1 X0 Y0 ; Zero (home) the X & Y
M84 S0 ; Disable the stepper motor timeout
M0 WHITE then Click To Restart ; Pause and wait for the user
M84 S60 ; Reenable the default timeout
G91 ; Put in relative mode
G1 Z-10 ; Raise the bed back up 10mm
G90 ; Put back in absolute mode
; end layer pause code

;LAYER:8 <<<<<<< first line of layer 8.

https://www.tinkercad.com/things/06vw3rQREeP-beertime/edit