What Is Hijri & Gregorian Seasonal Planning?
Accounting for the 10–11 day annual shift of Hijri occasions (Ramadan, Eid al-Fitr, Eid al-Adha) on the Gregorian calendar when planning budgets.
Formula & calculation
Hijri Season Shift ≈ −10 to −11 Gregorian days per year (confirmed by official moon-sighting)
Practical example
In 2027, Ramadan is expected around 8 February 2027 (expected until official announcements), moving agency prep into mid-January.
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AdsRanger (2026). What Is Hijri & Gregorian Seasonal Planning?. Retrieved 13 November 2026, from https://adsranger.com/en/glossary/hijri-date.
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