During Autumn it is already getting darker and that is the entrance of the Wintertime. Actually, the Winter time is the standard time, the Summer time is time that is different from the standard time.
The winter time runs from the last Sunday of October until the last Sunday of March. During the night of Saturday 26th of October - Sunday 27th of October 2019, you turn the clock at night from 3:00 am to 2:00 am. Nice to know you have one hour extra sleep !