Islamic Calendar 1840
Important Hijri dates in 1840, with live estimated or confirmed status.
February 13, 1840Day of Arafah9 Dhul Hijjah 1255 AHCalculatedFebruary 14, 1840Eid al-Adha10 Dhul Hijjah 1255 AHCalculatedMarch 14, 1840Ashura10 Muharram 1256 AHCalculatedSeptember 24, 1840Isra and Mi’raj27 Rajab 1256 AHCalculatedOctober 27, 1840Ramadan1 Ramadan 1256 AHCalculatedNovember 22, 1840Laylat al-Qadr27 Ramadan 1256 AHCalculatedNovember 26, 1840Eid al-Fitr1 Shawwal 1256 AHCalculated
Are these dates final?
Future lunar dates remain estimates until the relevant month start is reviewed and confirmed. Pages update from IslamCal’s shared reconciliation record, avoiding duplicated manual dates.