Earth Day
Ymir Years
Because Ymir is tidally locked, so no day-night cycle, and has an orbital period of a mere 32 days, there is no proper way to tell time or even years. As such, an artificial calendar was created, which are called Ymir Years. These have approximately the same length as Earth Years. Under the current design, it would take 1875 Ymir Years on average to end up approximately 1 day off the Gregorian Calendar. Seconds are the same length, but Ymir Days are 25 hours, to better fit human biological cycles. A year consists of 10 months of 35 days, so every year starts on a Monday. 2 out of every 3 years have a weekless leapday, which is when Earth Day is celebrated. When a year has no leapday, the last sunday becomes Earth Day. Every 30 years the 29th year also has no leapday. Due to time dilation, it is impossible to know for sure what date it is on Earth. As such, the choice was made to just start the year on the day of first landing. Other relevant dates that were considered, were the day of arrival, day of first Awakening, and the day that drones landed to help clear a landing site. However, those were all judged to be of less emotional value.Last Sunday of year (non-leap years)
Excellent explenation what Earth day is, and how it feels to the people who arrived there. I also like how you explain how time passes on Ymir.
Part of me is feeling like I'm padding wordcount by merging those two... -,- But then again, time is a social construct here, so I guess it also is a tradition.
Too low they build who build beneath the stars - Edward Young