The Hebrew Calendar

ON LINE HEBREW CALENDAR

The Hebrew Calendar has 12 months (13 in a leap year ) of 29 or 30 days and the months first day is usually on new moon (Molad).

Molad
New moon
1st day
5th day 8th day 11th day 15th day 18th day 22th day 27th day

The length of the year:
Prdinery year Leap year
deficient year 353 383
regular year 354 384
complete year 355 385

The length of the months:
deficient year regular year complete year
Tishri 30 30 30
Heshvan 29 29 30
Kislev 29 30 30
Tevet 29 29 29
Shevat 30 30 30
Adar/Adar II 29 29 29
Nisan 30 30 30
Iyar 29 29 29
Sivan 30 30 30
Tammuz 29 29 29
Av 30 30 30
Elul 29 29 29
Days in ordinary years   353 354 355
Added in leap yearsAdar I 30 30 30
Days in leap years   383 384 385
In leap years Adar is called Adar III.

The Hebrew Leap Year Distribution is a 19 Year Cycle consisting of 12 years of 12 months and 7 years of 13 months.
The years 3 - 6 - 8 - 11 - 14 - 17 - 19 of the 19 year cycle are leap years.

The Hebrew hotydays
Rosh Hshana 2 days New Year Is usually on the new moon of Tishrei
but never in Sunday, Wednesday or Friday.
Yom Kippur 10 TISHREI
Sukot 8 days 15 TISHREI
Hanuka 8 days 25 KISLEV
1 Tu Beshvat 15 SHVAT
Purim 14 ADAR
Pesah 7 days 15 NISAN
Independence Day 5 IYAR
Lag BaOmer 18 IYAR
ShAVuot 2 days 6 SIVAN

ON LINE HEBREW CALENDAR