Tukuk-OS🕐 Clock Reading
ℹ️ What this tool does & how it works
Digital did it to clocks the way calculators did it to mental arithmetic: a whole generation can read a screen and cannot read a face. This drill draws a real analogue clock — hour hand short, minute hand long, hands placed with the actual gear maths (the hour hand creeps between numbers as minutes pass) — and asks for the time, from o’clock down to any five-minute mark.
The one detail every clock face gets wrong
The hour hand is not parked on the number — it crawls. At 2:30 it should sit exactly halfway between II and III, because a full dial sweep takes twelve hours, not twelve hops; this page draws it at (hour + minutes/60) × 30° for exactly that reason, which is also the read-your-own-face cue: the number the hour hand has just left is the hour, the number the minute hand points at is five times that. Once a child can explain why 2:30 looks "a bit past the 2", o’clock to five-minute mastery is the same skill at finer steps.