Full name: lunar year
Plural form: years
Symbol: yr
Alternate spelling: lunar years
Category type: time
Scale factor: 30617568
The SI base unit for time is the second.
1 second is equal to 3.2660987312905E-8 lunar year.
Valid units must be of the time type.
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The lunar year comprises twelve full cycles of the phases of the Moon, as seen from Earth. It has a duration of approximately 354.37 days. Muslims use this for celebrating their Eids and for marking the start of the fasting month of Ramadan. A Muslim calendar year is based on the lunar cycle.