2013 (MMXIII) will be a common year starting on Tuesday and it is a current year in some Pacific Islands east of International Date Line. In the Gregorian calendar, Ii is the 2013th year of the Common Era (CE) and Anno Domini (AD) designations; the 13th year of the 3rd millennium and the 21st century; and the 4th of the 2010s decade. It is also the first year to be denoted by four different digits in 26 years (since 1987).January 6 – Christmas – (Celebrated by the Armenian Church)
January 7 – Christmas – Eastern Orthodox Churches.
February 1 – Imbolc, a Cross-quarter day (Celebrated on February 2 in some places).
February 13 - Ash Wednesday
March 20 – Spring Equinox, also known as Ostara.
March 25 - Passover
March 31 – Easter (Western Christianity).
May 1 – Beltane, a Cross-quarter day.
May 5 – Easter (Eastern Christianity).
May 9 – Feast of the Ascension (Western Christianity).
May 19 – Pentecost (Western Christianity).
June 21 – Summer solstice, also known as Midsummer.
July 9 – Ramadan, Muslims holy month of fasting begins.
August 1 – Lammas, a Cross-quarter day.
August 7 – Eid al-Fitr, Muslims end of fasting celebration.
September 4 – Rosh Hashanah
September 14 – Yom Kippur
September 16- Onam, a major south Indian festival.
September 22 – Autumn Equinox, also known as Mabon.
October 14 - Thanksgiving (Canada)
October 14 – Columbus Day (United States)
October 15 - Eid al-Adha, Muslims commemorating prophet Abraham's willingness to sacrifice his son.
November 1 – Samhain, a Cross-quarter day and Neopagan new year.
November 3 – Diwali,Light FestIndia.
November 28 - Thanksgiving (United States)
November 27 – Chanukah.
December 8 – Feast of the Immaculate Conception (Catholicism).
December 21 – Winter solstice, also known as Yule.
