Daylight Saving Time (officially, it is not "Savings") should really be called
Daylight Spending Time.
The two biggest proponents of DST are the golf industry and the barbecue industry. When the day is longer, people golf more often and eat burnt meat more often.
No, it never had anything to do with farming.
You can read more here, unless you're about to tee off:
http://www.thedailybeast.com/articles/
2016/11/05/the-greatest-myths-about-daylight-saving-time.html