The clock item's portrayal of sunrises/moonrises and sunsets/moonsets is reversed

The clock item shows, if you observe it, that the sun/moon rises on the right (west) side instead of the left (east) side. The sun/moon also sets in left (east) side instead of the right (west) side.

You can test this by having a clock in your hotbar, facing north and looking straight up while running this command in an active repeating command block: