Eid al-Fitr
Eid al-Fitr is a holiday to mark the end of the Islamic month of Ramadan, during which Muslims fast during the hours of daylight.
Elsewhere on timeanddate.com
AM and PM Explained
How does the 12-hour clock system work? Is midnight 12 am or 12 pm?
Eid al-Adha (Feast of Sacrifice)
Eid al-Adha (Id ul-Adha) is an Islamic festival falling on the 10th day of the month of Dhul Hijja (Thou al-Hijja) to commemorate the willingness of Ibrahim (Abraham) to sacrifice his son.
Daylight Saving Time (DST)
Why do many countries set the clocks back and forth an hour twice a year?