The Nativity Fast is a period of abstinence and penance practiced by the Eastern Orthodox, Oriental Orthodox, and Eastern Catholic Churches, in preparation for the Nativity of Christ, (December 25).^[1] The fast is similar to the Western Advent, except that it runs for 40 days instead of four weeks. The fast is observed from November 15 to December 24, inclusively. These dates apply to those Orthodox Churches which use the Revised Julian calendar, which is identical to the Gregorian calendar. For those national Churches which still follow the Julian calendar (Russia, Georgia, Ukraine, Macedonia, Montenegro, Serbia, and the Patriarchate of Jerusalem), the Winter Lent does not begin until November 28 (Gregorian) which coincides with November 15 on the Julian calendar.

Sometimes the fast is called Philip's Fast (or the Philippian Fast), as it traditionally begins on the day following the Feast of St. Philip the Apostle (November 14). Some churches have abbreviated the fast to start on December 10, following the Feast of the Conception by Saint Anne of the Most Holy Theotokos.

Chhath (Hindi: छठ, also called Dala Chhath) is an ancient Hindu festival dedicated to the Hindu Sun God, Surya, also known as Surya Shashti.^[1] The Chhath Puja is performed in order to thank Surya for sustaining life on earth and to request the granting of certain wishes. The Sun, considered the god of energy and of the life-force, is worshiped during the Chhath fesival to promote well-being, prosperity and progress. In Hinduism, Sun worship is believed to help cure a variety of diseases, including leprosy, and helps ensure the longevity and prosperity of family members, friends, and elders.

The rituals of the festival are rigorous and are observed over a period of four days. They include holy bathing, fasting and abstaining from drinking water (Vratta), standing in water for long periods of time, and offering prashad (prayer offerings) and aragh to the setting and rising sun.

World Diabetes Day is the primary global awareness campaign of the diabetes mellitus world and is held on November 14 of each year. It was introduced in 1991 by the International Diabetes Federation and the World Health Organization in response to the alarming rise of diabetes around the world. World Diabetes Day is a campaign that features a new theme chosen by the International Diabetes Federation each year to address issues facing the global diabetes community. While the campaigns last the whole year, the day itself marks the birthday of Frederick Banting who, along with Charles Best, first conceived the idea which led to the discovery of insulin in 1922.

Each year, World Diabetes Day is centred on a theme related to diabetes. Topics covered have included diabetes and human rights, diabetes and lifestyle, diabetes and obesity, diabetes in the disadvantaged and the vulnerable, diabetes in children and adolescents.^[1] and talking about Diabetes^[2]