*Writing fanfiction* "Twilight could barely believe it was almost 5 in the afternoon. She cursed haylight savings time for causing the sun to set so early." *why can't I stop making puns...*
Haylight savings = Daylight savings. Considering the original reason for daylight savings time was to help farmers, it makes some sense to use the word 'hay' in the pun. At least to me.
"Although an early goal of DST was to reduce evening usage of incandescent lighting" I don't think it was made for farmers ( I know what you based your pun off >.> )