In the case of 3A, we're off the hook as the schedule for today is as follows:
Stage 3A:
04:00-06:30
12:00-14:30
If it is Stage 3B, well, then we're in for a bit of dark between 8 - 10 p.m. (note, I say 10:00 p.m., not 10:30 p.m. - this is because in their announcement, Eskom have said load shedding will end at 10:00 p.m...)
Stage 3B:
04:00-06:30
12:00-14:30
20:00-22:30
Incidentally, the GridWatch app shows it is Stage 4 - how they get that, I don't know....
If you're unsure like me, then you might as well keep those candles handy...