Which is the day reading

I have a new meter and i have 2 readings. Is Nos 1 the day usage and Nos 2 the night?

During the day take the readings then go boil a kettle of water and the one that changes is the day one.

Hi there @Clark it varies so much between different meters that I wouldn’t like to say definitively for your meter without knowing a bit more. As @scudo says the best way is to perform what we rather opaquely call a ‘space test’, which is basically just to read your meter twice during the day (or night, but that’s usually less convenient), and see which register has moved-that’s the day one. I’d recommend giving it at least half an hour’s gap, and writing down or taking a photo of the readings since they won’t have changed by much