A ClockWorld port (owns_world, rest_scale, seed), verbs to set and advance it,
clock_new_day, a DayTurned queue (stayed up past midnight, or slept), a
calendar whose month, year and season are pure functions of the day, and a
System (PH_INPUT) with its own save section. Nine test blocks in
tests/clock_test.ludic with fakes for the port.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
