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MEAN_SYNODIC_MONTH_LENGTH

icu_calendar::cal::east_asian_traditional_internal::simple

Constant MEAN_SYNODIC_MONTH_LENGTH 

Source 
const MEAN_SYNODIC_MONTH_LENGTH: Milliseconds;
Expand description

The mean synodic length on Jan 1 2000 according to the Astronomical Almanac (1992).