This is a clock it can tell time in minutes and seconds but not hours because Tinkercad doesn’t do gears well

Supplies

Just something with Tinkercad although I wouldn’t print it

Step 1:

Take a cylinder make it one unit tall and 120 units for width and length

Step 2:

Make a axle connector in the center of the cylinder connect the cylinder with the orange node set the connector to a continuous motor with a speed of -60

Step 3:

Make a cube set its height to 2.25 its width to 7 and its length to 61 line it up so it’s right above the connector with a nub on one side of the connector and the rest on the other side so it looks like a clock hand connect it with the axle connector with the blue node

Step 4:

Duplicate the axle connector and connect the cylinder with the orange node set the new axle’s speed to -1

Step 5:

Duplicate the clock hand raise it 5 units connect it to the newer axle connector with the blue node and you’re done