Shana Tova and Eid Mubarak!

Rosh Hashanah (Hebrew: ראש השנה‎, literally "first of the year", or "head of the year," Ashkenazic: [ˈɾoʃ haʃːɔˈnɔh], Israeli: [ˈʁoʃ haʃaˈna], Yiddish: [ˈrɔʃəˈʃɔnə]) is a Jewish holiday commonly referred to as the "Jewish New Year." It is observed on the first day ofTishrei, the seventh month of the Hebrew calendar,^[1] as ordained in the Torah, in Leviticus 23:24. Rosh Hashanah is the first of the High Holidays or Yamim Noraim ("Days of Awe"), or Asseret Yemei Teshuva (Ten Days of Repentance) which are days specifically set aside to focus on repentance that conclude with the holiday of Yom Kippur.  

Rosh Hashanah begins at sundown on Friday September 18 and ends at nightfall on Sunday September 20.  Rosh Hashanah is a two-day holiday both in Israel and outside of Israel.

Eid ul Fitr - The Muslim world celebrates Eid ul Fitr on Sunday. Sept. 19.  Eid is also going to be celebrated in much of Middle East, Europe and Far East on Sunday.  

Eid ul-Fitr or Id-ul-Fitr (Arabic: عيد الفطر ‘Īdu l-Fiṭr‎), often abbreviated to Eid, is a Muslim holiday that marks the end of Ramadan, the Islamic holy month of fasting. Eid is an Arabic word meaning "festivity", while Fiṭr means "to break fast"; and so the holiday symbolizes the breaking of the fasting period. It is celebrated after the end of the Islamic month of Ramadan, on the first day of Shawwal.

Eid ul-Fitr is a day long celebration and is sometimes also known as the "Smaller Eid" (Arabic: العيد الصغير al-‘īdu ṣ-ṣaghīr‎) as compared to the Eid ul-Adha that lasts four days and is called the "Greater Eid" (Arabic: العيد الكبير al-‘īdu l-kabīr‎).

This year these two high holidays fall at the same time.... Shana Tova and Eid Mubarak to all of you observing the High Holidays