Some examples are:

A number of Cotswold CTAs were introduced in November 2019 which are only active outside of 9-5 Mon-Fri (ie between 9-5 Mon - Fri they are Class G) however skydemon illustrates these with no notes and appear active H24. Some Portsmouth CTAs are also established as FUA and these do have a note associated in skydemon so it is possible to view the hours without scouring the AIP.

Danger area details are displayed in a slightly different format and some form of coded hours in a similar format for CTAs could prove useful however there is still more detail that could be added, for example D001 shows as active at 'weekdays' but the published hours are Mon-Thu 0800-2359 (0700-2300), Fri 0800-1800 (0700-1700). Admittedly you might not want that much detail but in some areas it can be useful.