This is poor Lemmy programming, has nothing do with DST. You’ll often see if you’re posting a comment it will say “in 3 seconds”, meaning in the future. It’s because of how the frontend calculates the relative time based on a db timestamp against the local clock of your computer… which are beginner programmer mistakes from the late 90’s.

Slightly off topic below.

The 2 blokes programming this are not very good and since they are now beginning to peddle violence inciting garbage they can stuff their monthly donation too.