Question: what is the first month on the jewish calendar
Answer: Hebrew months Length Nisan 30 Iyar 29 Sivan 30 Tammuz 29 5 Av 30 6 Elul 29 7 Tishrei 30 8 Marcheshvan ( or Cheshvan ) 29 / 30 9 Kislev 30 / 29 10 Tevet 29 11 Shevat 30 12 Adar 29 Total 353 , 354 or 355