Just had a 33 minute convo with a EDF chap about the way those many-clocks meters work. Resisted playing the "I'm a mathematician" card
The nub of it is that this reads 80822, not 81822, because each dial rolls continuously, like how an hour hand is v close to 12 at 11:55
you'd think a utility company support person would be well-versed in that kind of thing...