Have you ever started indev, and generated a new level? Of course you have. But have you created a giant awesome fort? Well, maybe you have, maybe you haven't. Anyways, while playing on that awesome fort, you notice that the sun won't go down. You clutz! You generated a paradise map! Don't fret though, because you can fix it! Yes, there is a way!
You must use Omen to do this, so if Omen doesn't work, to bad.
1. Open your map in Omen
2. Save your map with a .dat extension
3. Open the .dat level
4. Save your map with a .mclevel extension
As Omen is so buggy, you will have to wait for the lights to come back on when you first load up the map. Patience is a virtue children, LEARN IT!