The alarm clock stays put at 06:45. The body clock only moves when light gets in — so on Day 1, with the curtains shut, nothing happens at all. Tap through the five mornings. The numbers show the principle; how fast it goes varies from child to child.
Day 1
curtains shut
Day 2
light gets in
Day 3
the clock moves
Day 4
almost there
Day 5
in step
Morning light — the only thing that actually moves the clock