To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.
It seems to be a classic Browser/HTML feature that is by default removing excess whitespaces. You should apply a custom stylename to all cells in that specific column and provide a CSS rule white-space: pre; to it.
Thank your for the idea, i tried it, but it did not fix it. It adds a white-space to some of the rows, but does not line up all. Further more i would like to have a leading zero, should be possible with the mighty Java Date, but i don't get it :)