The first three days start on March 5, since on Monday, March 7, Lent officially begins with Shrove Monday. Which is followed by March 8, Women's Day!
The first three days, follow the 2nd, since the 25th of March "falls" Friday.
The same weekend we welcome the summer time and our indicators will slowly "show" summer.
Daylight saving time, when we turn the indicators one hour forward, is valid from the last Sunday of March 2022, which this year is March 27th.