What is 12th jewish month?

The twelfth month of the Jewish year is called Adar (אֲדָר). It corresponds approximately to February–March in the Gregorian calendar.

• It is a winter month in the Northern Hemisphere.
• Adar has either 29 or 30 days. In leap years (when an extra month, Adar II, is added), Adar I has 30 days and Adar II has 29 days.
• The primary holiday in Adar is Purim, a joyous celebration commemorating the Jewish people's salvation from Haman's plot to annihilate them in ancient Persia.
• When Adar is doubled (Adar I and Adar II in leap years), Purim is celebrated in Adar II.
• A common saying associated with Adar is "Mishenichnas Adar marbim b'simcha" (מִשֶּׁנִּכְנַס אֲדָר מַרְבִּין בְּשִׂמְחָה), which means "When Adar arrives, we increase in joy." This emphasizes the month's association with happiness and celebration.
• There are also fast days that can occur within Adar depending on the year, like Ta'anit Esther (The Fast of Esther).