Islam
Sawm (Also spelled as Siyam or Sum):  Fasting during Ramadan, the ninth month of the Islamic year.  Muslims do not eat or drink from Fajr till sunset for one lunar month. After Ramadan, there is a holiday called Eid al-Fitr (which means "festival of end-fast" in English). On Eid al-Fitr, Muslims usually go to the mosque in the morning after sunrise for a special Salaah.