Make days longer.

I would like for the days to be longer, 20 minutes as before it was changed. 10 minutes doesnt give me enough time to do anything. i cant go exploring far before the sun begins to set and i have either waste time by fighting mobs or sleep the night away/ hide. I prefer the longer days to whatever this is. I would like there to be an easy way to change how long the days are for those who want longer days, that way both parties can be happy.