Yes, timeskips have been confirmed by Cosy. As the MC has said, weddings (and pregnancy) are years away in game. Even with time skips, that is also years way in dev time.
Oh man, yea you're right littlextiger. The MC claims to not even consider marriage until they are at least 21, which is 3 years (or Day 1095) away. I use the word "claims" because let's be honest, on Day 1 they also "claimed" to not be interested in getting involved with any girls and look where he is now on Day 25, lol.