The Quasi-Lunar Calendar (QLC), developed by Shriramana Sharma early in the first decade of the 21st century, has only months of 30 days: 12 in a common year and a 13th, leap month in a leap year. The author provides an analysis of possible leap rules without finally selecting one. The months are named the same as in the Gregorian Calendar, the name of the leap month at the end of the year is undecided, could be Intercalaris.
The calendar uses an epoch of 0001-01-01, which the author calls common civil epoch (CCE). The same author also developed the leap-day STAY Calendar and otherwise promotes the Symmetry454 Calendar.