Islamic Calendar 2021
Key Islamic (Hijri) dates falling in 2021, which spans 1442 AH (20 August 2020 → 9 August 2021).Ramaḍān begins 13 April 2021 · Eid al-Fiṭr 13 May 2021 · Eid al-Aḍḥā 20 July 2021. All dates use the tabular calendar and may shift ±1 day with the moon sighting.
| Gregorian date | Day | Observance | Hijri date |
|---|---|---|---|
| 11 March 2021 | Thursday | Isrāʾ and Miʿrāj 27 Rajab — the Night Journey | 27 Rajab 1442 AH |
| 29 March 2021 | Monday | Mid-Shaʿbān 15 Shaʿbān — Laylat al-Barāʾah | 15 Shaʿbān 1442 AH |
| 13 April 2021 | Tuesday | First day of Ramaḍān 1 Ramaḍān — the month of fasting begins | 1 Ramaḍān 1442 AH |
| 9 May 2021 | Sunday | Laylat al-Qadr 27 Ramaḍān — commonly observed date | 27 Ramaḍān 1442 AH |
| 13 May 2021 | Thursday | Eid al-Fiṭr 1 Shawwāl — the end of Ramaḍān | 1 Shawwāl 1442 AH |
| 19 July 2021 | Monday | Day of ʿArafah 9 Dhū al-Ḥijjah | 9 Dhū al-Ḥijjah 1442 AH |
| 20 July 2021 | Tuesday | Eid al-Aḍḥā 10 Dhū al-Ḥijjah — the Festival of Sacrifice | 10 Dhū al-Ḥijjah 1442 AH |
| 10 August 2021 | Tuesday | Islamic New Year 1 Muḥarram — start of the Hijri year | 1 Muḥarram 1443 AH |
| 19 August 2021 | Thursday | Day of ʿĀshūrāʾ 10 Muḥarram | 10 Muḥarram 1443 AH |
| 19 October 2021 | Tuesday | Mawlid al-Nabī 12 Rabīʿ al-Awwal — the Prophet's birthday | 12 Rabīʿ al-Awwal 1443 AH |
Convert a specific 2021 date
Use the converter for any exact day — it works in both directions and for any year, not just 2021.
Tabular ("Kuwaiti") Islamic calendar — deterministic arithmetic. Real month starts follow the moon sighting and can differ by ±1 day.
About the Islamic calendar in 2021
The Gregorian year 2021 overlaps two Hijri years, with 1442 AH accounting for most of it. Every date above is the arithmetic (tabular) result — the same rule Microsoft's "Kuwaiti algorithm" uses — so it round-trips exactly and needs no lookup tables. The lunar Hijri year is roughly eleven days shorter than the Gregorian one, which is why Ramaḍān and the two Eids arrive about eleven days earlier each Gregorian year.
FAQ
When does Ramadan start in 2021?
On the tabular Islamic calendar, 1 Ramaḍān 1442 AH falls on 13 April 2021 (Tuesday) in 2021. The actual first day of fasting depends on the local moon sighting and may differ by about a day.
When is Eid in 2021?
Eid al-Fiṭr (1 Shawwāl) is 13 May 2021 (Thursday), and Eid al-Aḍḥā (10 Dhū al-Ḥijjah) is 20 July 2021 (Tuesday) by the tabular calendar. Both may shift by ±1 day with the moon sighting.
What Hijri year is 2021?
Most of 2021 lies within 1442 AH, which runs from 20 August 2020 to 9 August 2021. Because the Hijri year is about eleven days shorter than the Gregorian year, a single Gregorian year always overlaps two Hijri years.
Are these 2021 Islamic dates exact?
They are computed with the deterministic tabular ("Kuwaiti") algorithm, so they are exact as arithmetic and perfect for planning. Religious observances follow the sighting of the new moon, however, so confirm the precise day with your local authority.