That depends on exactly what you mean when you say "luner month".
In 10 years . . .
-- The moon completes 133.69 orbits around the Earth. (rounded)
-- The moon displays 123.68 complete cycles of its 'phases'. (rounded)
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109 years 6 months (and 7-10 days, depending on which year and month you start counting from)
10 years = 87,658.1277 hours
10 years
1 decade = 10 years 10 decades = 100 years 100 years = 1 century
There are 100 years per century. 10% of this equals 10/100 * 100 = 10 years.