On the night of Sunday to Monday, the clocks are set forward one hour at 2 a.m. In the vast majority of households, technology now does this on its own.
So that you don't have to dig out this article every time, here are a few mnemonics for the future. With the seasons in mind, we always head towards summer: forward in spring, back in autumn. The thermometer trick: Time changes like the temperature, in summer it is positive (introduce), in winter it is negative (reset)