GGB Indicatively, a prepared single site is often a matter of several weeks from gap assessment to certification audit — but the real driver is how ready your operation is, not the calendar. A business with documentation and trained staff in place moves quickly; one starting from scratch takes longer. Treat any timeline as a planning estimate and verify it with your chosen certifier.
From HACCP Certification in Dubai: Requirements, Timeline and the Process — the full reading, with the method behind this answer.