[2022] MOVED: How to set time

*** Command: settime *** Set the current game time. Usage: 1. settime day 2. settime night 3. settime 4. settime 1. sets the time to day 1, 12:00 pm. 2. sets the time to day 2, 12:00 am. 3. sets the time to the given value. 1000 is one hour. 4. sets the time to the given day/hour/minute values.
Just be aware that this is a developer test command, and that running it on your save/server has a very high likelihood of breaking your game.

Moving time forward seems to have notably less impact in a20 than in previous versions.
Moving time backwards is almost guaranteed to break your save.