3 ms·

The first rule of pentamester club is: we do not talk about February 29th ;)

• _hzw 3y ago
  or you can have a day of break every four years :(
  • madcaptenor 3y ago
    Or you can observe 1461 = 3 * 487 and divide every four-year period into... um... three hexadecamesters?
    • mckirk 3y ago
      That's the spirit!
    • berbec 3y ago
      Don't forget, every 100 years isn't a leap year, but every 400 is. Their are 485 leap years between 2000 and 3999, inclusive, for a total of 730,120 days.