The siesta started back when most of Spain's working population worked in agriculture. In an effort to avoid the sun's strongest rays and the hottest temperatures, workers would break midday and then get back to work later when the temperature was cooler.
A 2013 commission found that cutting the long break could potentially improve Spain's quality of life, increase its low birth rates and reduce marriage and family issues. Under the current daily schedule, many people don't get home until the late evening, which means they eat late and go to sleep late; there's little room for quality time with loved ones.
"We need more flexible working hours, to cut our lunch breaks, to streamline business meetings by setting time limits for them and to practice and demand punctuality," the Independent reported the commission as saying.
Some say Rajoy, who initially rejected the shortened workday, may be pushing the change in an effort to increase popularity amid an upcoming election season this summer.
Rajoy also proposed switching Spain back to Greenwich Mean Time, which would turn the country's clocks back one hour. Spain adopted Central European time in 1942 as a gesture of solidarity with Adolph Hitler's Germany, despite the fact that the country is geographically located within the Western European time zone.
"Because of a great historical error, in Spain we eat at 2 p.m., and we don't have dinner until 9 p.m., but according to the position of the sun, we eat at the same time as the rest of Europe: 1 p.m. and 8 p.m.," Nuria Chinchilla, director of the International Center on Work and Family at the IESE Business School, told The Guardian in 2013. "We are living with 71 years of jet-lag, and it's unsustainable."