These new chunks of Class C airspace to the West and South-West of Birmingham were implemented today, active only overnight and weekends.
SD shows them as active H24. Even if they have to be charted irrespective of the time of flight, could the pop-up notes at least include the hours of operation?
This particular airspace change may affect very few VFR users, but FUA is likely to increase in future affecting many more users, so it will become more relevant that SD can deal with the concept.