February 30

The February 30 is exist in the Julian calendar. The month February has only 30 days in the Julian Calendar

Real life

February 30 was a real date in few calendars.^[1]

Early Julian calendar

Johannes de Sacrobosco claimed that from 45 BC to 8 BC, the February had 30 days in leap year. In 8 BC, Augustus added 31 days in August. It made the February shorter.

Swedish calendar

Swedish calendar for February 1712

In 1700, Sweden tried to change their Gregorian calendar date to Buddhist calendar date by removing all leap years from 1698. However, the 1700, 1704 and 1708 became leap days by mistake. So Sweden added 2 leap days in February 1712 to match their dates with the Julian calendar. They changed to Gregorian calendar in 1753 by removing the 11 days from February.

Soviet calendar

Many sources claimed that from 1929 to 1940, the Soviet Union used a new calendar. It had 5-6 weeks and 30 days each month. Other 5 days were holidays in the calendar, just like the French Republican Calendar.

Fictional calendars

In J. R. R. Tolkien's Middle-earth legendarium, the Hobbits have developed the Shire Reckoning.

According to Appendix D to The Lord of the Rings, this calendar has 12 months and 360 days. The month the Hobbits call Solmath actually says February in the text. The month shows 30 days.^[2]

February 30, 1951, is the last night of the world in Ray Bradbury's short story, "Last Night of the World".^[3]