mine used to come on at 11pm to 6am in winter and 12 to 7am in summer when the clocks change,if you look at the meter you can see when its changed over to night rate.
Hi Queen 1954
They changed mine to the 2 tier without any by your leave 6 years ago
don't know why but they said it was the way it had to be done (at least the dishwasher and washing machine can go on before we go to bed now)
Best dave G
My economy 7 was a single slot finishing at 7.30 in winter but when the meter stopped working it was replaced. They told me it would be a two stage one and they'd let me know the hours it covered but they left without telling me the hours. When i rang no-one could tell me. Does anyone know how i find out? Are they all on the same time setting