Why do Islamic dates change each year?

Islamic dates follow the Hijri lunar calendar, which has 354-355 days per year (about 11 days shorter than the Gregorian calendar). This means Islamic events shift approximately 11 days earlier each Gregorian year.

How accurate are these Islamic dates?

Our dates are calculated using astronomical algorithms. However, some Islamic dates (like Ramadan) are traditionally determined by moon sighting, which may vary by 1-2 days depending on location and religious authority.

What are the main Islamic events in May 2040?

The main Islamic events in May 2040 include: Birth of Zainab (as), Battle of the Camel, Martyrdom of Fatimah al-Zahra (as).

2040 Calendar

Islamic Calendar May 2040

The Islamic calendar for May 2040 lists all 3 Muslim religious dates occurring this month. Find accurate Hijri to Gregorian conversions for Ramadan, Eid, and other Islamic observances.

Last updated: February 22, 2026

Summary

May 2040 includes 3 Islamic events. 1 commemoration marks significant historical events. 1 celebration falls within this month. Each event includes both Hijri and Gregorian dates.

•3 Islamic events in May 2040
•1 commemoration
•1 celebration
•Hijri to Gregorian date conversions
•Export to Google, Apple, or Outlook calendar

Islamic Dates in May 2040

This Islamic calendar shows all religious dates falling within May 2040 according to the Gregorian calendar. The Islamic (Hijri) calendar is lunar-based, so Islamic dates shift approximately 11 days earlier each Gregorian year. Use this page to see exactly which Islamic events occur during May 2040.

All Events in May 2040

17May

Celebration

Birth of Zainab (as)

Lady Zainab (as) was the third child of Lady Fatima az-Zahra (sa), born in 5 A.H. after Imam Husayn (as), refuting claims she followed a miscarriage of Mohsin, which historians like Bint Ash-Shati use to downplay the attack on Fatima's house. Named "Zainab" by the Prophet (S), meaning "embellishment of her father," or via Gabriel. Her life involved noble traits amid tragedies: deaths of grandfather and mother, father's confinement, his martyrdom, battles, Hasan's poisoning, Karbala massacre, captivity to Syria, return to Medina, and exile to Egypt, where her tomb is visited (though most believe it's in Syria).

5 Jumada al-Awwal 1462 AH

22May

Event

Battle of the Camel

The Battle of Basra, or Battle of the Camel, marked the Second Civil War in Islam after Uthman's assassination and Ali's accession as caliph. Ayesha, Talha, and Zubayr, using vengeance for Uthman as pretext for their ambitions, raised a 3000-strong army in Mecca, captured Basra, killed 600 Muslims, and seized the treasury. Ali, after failed peace efforts and mustering 700 volunteers plus Kufan reinforcements, confronted them. Negotiations failed; Zubayr deserted and was killed, Talha died in battle, and Ayesha's camel became the focal point until slain, leading to rebel defeat. Ali showed mercy, pardoned leaders including Ayesha, and reunited the umma.

10 Jumada al-Awwal 1462 AH

25May

Commemoration

Martyrdom of Fatimah al-Zahra (as)

After the Prophet's death, a group of up to 4000 men, led by Umar ibn Khattab, demanded Ali ibn Abi-Talib's allegiance to Abu Bakr at Fatima tuz Zahra's door. Ali, preparing the Qur'an, refused. They threatened to burn the house, set fire to the door, kicked it in, injuring Fatima—breaking her rib and causing miscarriage of Al-Muhassin. On her deathbed, Fatima requested a secret night burial attended by few loyal companions like Ali, al-Hassan, al-Husayn, Ammar bin Yasir, and Salman al-Muhammadi. Her grave's location remains unknown. Ali, who lifted Khaybar's gates effortlessly, wept unable to lift her body.

13 Jumada al-Awwal 1462 AH

Key Takeaways

13 Islamic events in May 2040
21 commemoration
31 celebration
4Hijri to Gregorian date conversions
5Export to Google, Apple, or Outlook calendar
6Islamic dates shift each year (lunar calendar)

Frequently Asked Questions

There are 3 Islamic events in May 2040, including 1 commemorations and 1 celebrations.