This alternative calendar consists of thirteen months, each containing 28 days of exactly four weeks, which compose an ordinary year of 364 days, containing exactly 52 weeks. Once, after 293 months have passed, a leap-month of 28 days is added, creating a leap year of 392 days. This would occur on average every 22.53 years. Thirteen cycles of 294 months compose a full calendar cycle of 107,016 days, 15,288 weeks, and 3,822 months of exactly 28 days each, after which the cycle repeats itself. Leap months would occur in the 293 year cycle in the following sequence: