My morning

In the morning I took my daughter to meet her scout friends. They had the meeting at 9, and we were late because it was 9.20 ( can I say "because we were 20 minutes late. When we arrived, there was nobody where we had to meet, so I thought they had already left. I was thinking what to do when I realized: it wasn't late, it was early because last night the time changed, now we are in winter time.

My morning

In the mornig I take my daughter meeting her scout friends. They had meeting at 9, and we were late because it was 9.20 ( can I say "because we were 20 minutes late "?). There was nobody where they had to meet, so I thougth they had already gone away. I was thinking what to do when I understood : it wasn't late, it was early because last night time was changed , now there is winther time.
THANKS TO EVERYBODY WHO WANTS TO CORRECT ME

Hi Cinzia-- your English is great!  here is a suggestion to improve...

In the morning I take my daughter to meet her scout friends. We were late as it was 9:20 and they had the meeting at 9:00.  There was nobody there, so I thought they had gone.  I was thinking what to do when I understood:  it wasn't late, it was early because the time changed last night.  Now it's winter time.

Sharon

My morning

In the mornig I take This morning I took my daughter to a meeting with her scout friends. They had meeting at The meeting started at 9, and we were late because it was 9.20 ( can I say "because we were 20 minutes late "? You could say "the meeting started at 9 and we were 20 minutes late."). There was nobody there when we arrived. where they had to meet, so I thought they had already gone away left. I was thinking what to do when I understood realized: we were not late, we were early because of the time change last night. last night time was changed , Now it is winter there is winther time.
THANKS TO EVERYBODY WHO WANTS TO CORRECT ME

Cinzia, here is another way of writing it.

My morning

This morning I took my daughter to meet her scout friends. They had meeting at 9, but we were twenty minutes late. There was nobody there, so I thought they had already left.  I was thinking about what to do when I realized we were not late.  We were early because last night the time changed. Time was set back one hour because it is now winter time.

 
THANKS TO EVERYBODY WHO WANTS TO CORRECT ME.

In the US we set it back one hour too.  We call it daylight savings time.  Also, we spell it "realize" instead of "realise".   Al

My morning

In the morning (or you could say ´This morning' instead)  I took my daughter to meet her scout friends. They had a meeting at 9, and we were late because it was 9.20 ( can I say "because we were 20 minutes late "?- yes that would be fine! ). There was nobody  where we had to meet, so I thought they had already gone. I was thinking what to do when I realised we weren't late, we were early because last night the clocks went back , now it's  winter time.

THANKS TO EVERYBODY WHO WANTS TO CORRECT ME