Kitab-i-Aqdas/Elder16/Note1

The arrangement is that, beginning with the Iranian New Year (Nawruz, which usually falls on 21st March), there will be eighteen months of nineteen days each. Then will come the five intercalary days. After them will begin the nineteenth month, the month of fasting. Immediately after it will come the next Nawruz, the feast of the New Year, according to ancient Iranian custom. The Arabic Nayruz is from the Persian Nawruz (cf. E. W. Lane, Lexicon, p. 2783).