Since I’m talking about clocks anyway, I realized it’s worth mentioning one more bit of notation I was considering for my own game – how to block a clock (and, critically, how to indicate that a clock is blocked). The trick is simple enough: put an asterisk in a given wedge to note the requirement to fill that wedge. So, for example the clock to kill a werewolf might be:

Simple as that. Since I like to complicate things, I might end up coming up with specific icons to fill in for the asterisk if there are consistent types of barriers. This model occurred to me when I was thinking about how I would do some Ars Magica style spell research where I would want the research process to demand some sort of action (because the asterisk is, ultimately, a course of action) and it struck me it’s just as applicable to a wide variety of situations.

Anyway, very small hack, but I share is in case it’s of any use.