Tamsin turns the globe slowly from west to east, the direction Earth really turns.

The arrow shows which way to turn the globe. The sticker faces the lamp: midday.

After a quarter turn, the sticker reaches the edge of the dark half. Evening has come to the town.

After half a turn, the sticker is on the far side from the lamp. It is midnight in the town.

After three quarters of a turn, the sticker reaches the edge of the lit half. Morning has come back.

A quarter turn each step: midday, evening, midnight, morning, and midday again.

After one full turn, the sticker faces the lamp again. One full turn stands for one day.

The sticker goes round with the globe, into the dark and back into the light. One full turn stands for one day.