Tickhollow

Tickhollow teaches children to read an analog clock with Professor Hoot, an owl in a night forest. Five stages build up step by step: o'clock, half past, quarter past and quarter to, five-minute steps and single minutes. Each stage has 10 questions in three kinds: read the clock and pick the time, set the clock by dragging the hands or with the arrow keys, and match a digital time like 07:45 to the right clock face. There is no timer; a mistake shows the right answer, and stars reward few slips. A challenge mode with three hearts mixes all stages. It plays in the browser with a keyboard, mouse or touch.