Jewish holidays all start at sunset because it’s when a Jewish day starts as well. On the other hand, dates of the Jewish calendar start at sunset of the previous night and end at nightfall. However, fast days are exceptions to the rule since these starts at dawn (with the exception of Yom Kippur and Tisha b’Av).
Working is not allowed on the Jewish holidays Yom Kippur, Rosh Hashanah, Simchat Torah, Shavu’ot, Shemini Atzeret, the 1st and 2nd days of Sukkot, and the 1st, 2nd, 7th, and 8th days of Passover. The prohibited ‘work’ on these Jewish holidays is like ‘work’ prohibited on Shabbat. However, forbidden ‘work’ during Shabbat such as carrying and transferring fire, baking, and cooking, is allowed on Jewish holidays. In the event that Jewish Holidays happen during Shabbat however, the entire restrictions on Shabbat should be observed.
There are actually two main Muslim holidays to take note of: Eid Al-Fitr and Eid Al-Adha. The first marks the end of Ramadan or a month of fasting with Muslims giving zakat or charity. The latter is used to celebrate the end of Hajj, which is the annual pilgrimage to Mecca. Muslims normally sacrifice animals and distribute the meat amongst their family, friends, and even the poor.
There are other important holidays in the Muslim calendar, but not all observe them. It is important to note that all Islamic holidays are based on the lunar calendar and move every year related to the solar calendar.
When it comes to Christian holidays, it is not all about festivities and enjoyment, but rather are focused more on contemplation with a significant portion centering on religious practices. The holidays commemorate historical events that relate to the birth and resurrection of Jesus Christ with a specific tone of self-reflection, repentance, and self-discipline among others.
Some of the holidays have exerted considerable impact on how western culture and traditions have been celebrated. It is quite interesting to note that among all the holidays, only Christmas Day remains fixed and most joyful.