Thirty Days Hath September Meton in the 5thcentury. Rather than adopt a new system like the Egyptian calendar, which had 12 months of 30 days each and a set, annual intercalary month of 5 days, Caesar aimed for his 46 reform to maintain as much continuity as possible with the old calendar. Ultimately, Mercedonius was removed, the four existing 31-day months were maintained, February was left unchanged apart from leap years, and the needful additional ten days of the year were added to the 29-day months to make them either 30 or 31 days long. By the Renaissance, the irregularity of the resulting system
30 Days of Night (film) in revenue, from 1,429,600 sold DVD units. This does not include Blu-ray sales. The DVD is a single disc and includes eight featurettes, one of which is a full episode of the anime "Blood+". The UK Region 2 release is a two disc special edition, released in April 2008. Despite being exactly the same as the theatrical release, the BBFC reclassified the film from a 15 to an 18. Even though it still only has the eight featurettes on the second disc, it includes a bonus "30 Days of Night" graphic novel. A straight-to-DVD sequel entitled "" was released on