Is 1 year greater than 12 months?
They are equivalent.
One leap year of the Gregorian calendar has 12 months. One leap year of most lunisolar calendars, including the Hebrew calendar, has 13 months. A leap year is 12 months just like a common year. A leap year is longer than the solar year and a common year is shorter than the solar year by just one day.
There are 12.36 lunar months in one Greogorian year [nearly same for solar year], since lunar month consists of 29.53 days. However there are only 13 lunar months if at all it is a lunar year. 12 lunar months are a bit shorther than a "solar year" - about 11 days shorter. In the case of the Islamic calendar, what they call year is by definition exactly 12 lunar months - but this year is…