Thanks Runar. I could try your translation and will PM you.
I tried to disable english from yeaterday morneing, and since then all post show time for post creation.
The thing is that it seems random wich post have this "stamp". Even same creators have and have not stamps on different posts, me included, even written on the same unit.
Investegating my own writing, the only difference from post to post would be my IP.