> Can you expand on this please? I was terming a 'clock' as anything with periodicity. An 'unbounded' clock would be a clock without an associated epoch or starting date.
A clock without context still has characteristics and can be compared to other clocks (for example, compare interval lengths). All the talk about duration sets, plus some earlier talk about time-only datetime objects, sounded like these concepts had a lot in common with clocks. (perhaps I'm just odd) Matt
