Rest days

Good day all,
I have almost the same question. I have been out for a long time and my time of driving was still with disks.
Now I’m due to start on a project in Denmark. The idea is to work 3 weeks and go home for one week. When I start on Monday am I right to think I must make a 45h rest the first weekend. And then the second I can cut it to 37 hours.? After the third week of work I will go home so there is enough compensation.
We will work 6 days a week 10h a day starting the Monday’s.
So in short:
60h week - 45h weekend- 60h week - 37h weekend- 60h week - week at home.

So the first weekend I need to stop at Sa 12:00h so I can start at Mo 09:00 (45h)
Second weekend I can work till Sa 18:00 and start at Mo 07:00. (37h)
Week at home is 205 hours

Average working is then 180h in 4 weeks so 45h p week.

Please advise if I’m thinking the right way here.
The whole new tacho is a bit fuzzy
Thanks Ray