Hijri date - Occasion - Significance

1 Muharram - Islamic New Year - Beginning of the new Hijri year
10 Muharram - Ashura - is a day of optional fasting that commemorates the events in biblical and Islamic history. It is a day of reflection and gratitude for God's deliverance of the Prophet Musa (Moses); and the martyrdom of Husayn ibn Ali
27 Rajab - Isra' & Mi'raj - The Prophet Muhammad's ﷺ miraculous Night Journey and Ascension
15 Sha'ban - Laylat al-Bara'ah / Nisfu Sha'ban - Night of forgiveness; observed in many Muslim communities
1 Ramadan - Beginning of Ramadan - First day of the month of fasting
17 Ramadan - Nuzul al-Qur'an - Traditionally associated in Indonesia/Malaysia with the revelation of the Qur'an
27 Ramadan - Laylat al-Qadr (commonly observed) - The 27th is widely observed as Laylat al-Qadr, although the exact night is not definitively specified
1 Shawwal - Eid al-Fitr - Festival marking the end of Ramadan
8 Dhu al-Hijjah - Yawm at-Tarwiyah - Beginning of major Hajj rites
9 Dhu al-Hijjah - Day of Arafah - Central day of Hajj; fasting is highly virtuous for those not performing Hajj
10 Dhu al-Hijja - Eid al-Adha - Festival of Sacrifice; begins during Hajj
11 Dhu al-Hijjah - Days of Tashriq - 3 Days of Tashriq from 11–13 Dhu al-Hijjah; part of the Hajj period