Do smart meters adjust to Daylight Savings Time?

Smart meters do not always recognise when the clocks spring forward to British Summer Time (BST) as they remain on Coordinated Universal Time (UTC).

If your tariff is a single rate tariff, the unit rate of energy you consume remains the same regardless of when you use your energy. Therefore, there is no impact to you when the clocks spring forward or fall backwards.

If you have a dual rate tariff, you may need to adapt your usage with the clocks changing to ensure you make the most of your lower cost electricity.

Economy 7 off-peak hours take place according to Coordinated Universal Time (UTC) between, for example, 12:30am-7:30am. This means when the clocks change in spring to BST, the off-peak hours will change to 1:30am-8:30am as the clocks spring forward but will then change back to 12:30am-7:30am when they fall back in Autumn.

Our EV Fixed tariff and Heat Pump Fixed tariff automatically adjust, so you do not need to adjust your usage timings when the clocks change during the year.