It is now “Golden Week” in Japan.
April 29th was “Showa Day”. It’s called that because it was the late Showa-era Emperor’s birthday, and celebrated as such until he died 26 years ago.
May 3rd (yesterday) was “Constitution Day”. The day Japan’s post-WWII constitution was adapted.
Today, May 4th is “Greenery Day”. The day to appreciate nature.
Originally after the Showa Emperor died, April 29th was Greenery Day because that Emperor loved nature, and May 4th was “Residents Holiday”… but it was changed about twelve years ago.
Tomorrow, May 5th is “Children’s Day”.
This year, because today is a Sunday and therefore today’s holiday is kinda ‘lost’ since it’s already a day off for most people… Tuesday, May 6th is also a day off. It’s “Greenery Day observed”.
Collectively, this holiday period is known as “Golden Week”.
Also, the new upcoming Star Wars movie (Episode VII), with the most famous faces from the first three Star Wars movies returning in their 60s or 70s will be in theaters in Japan and other countries in December 2015.
It seems that Star Wars fans around the world call May 4th (today) “Star Wars Day” because the date, May the Fourth, sounds like the well-known quote from Star Wars, “May The Force (Be With You)”.
Fellow KISS fan here in Japan, “Naokiss “, found an ad in today’s newspaper for the upcoming Star Wars Episode VII that explained that today is 「スターウォーズの日」(Star Wars Day):