Title text:
All discussions of daylight saving time policy are doomed by a mix of contradictory, inconsistent, and impossible preferences, which is why I think the only thing we can really hope to do is to make it worse.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3272/


Twice a day or once a day for the day hours length vs night length hours. Also for every latitude as well. What a simple system