Like lmaddy we always thought that there were different rates charged for the 3 time zones but on checking our electric bill, we got a big surprise!
Although each zone has been individually calculated as to how many units have been used for each, all the units are then added together and multiplied by 0.12105 giving a total to which the tax etc., is then added.
We have recently checked with some friends and their electric bill is calculated in the same way as ours, so would have to assume that this is common practise unless other forum members can tell us differently.
So all the times that the washing machine has been put on overnight, thinking that this was saving us ytl, have been a waste of time - apart from the fact that we have clean washing of course!
How is your electric bill[?]