How much grace period for vist visa in uae

We would like to inform you that tourism visas in the UAE vary in terms of residence periods and number of entry times, including a tourist visa for a short-term period that allows staying in the UAE for a period of (30) days and entry for one time only, or for multiple times as requested initially. Including long-term tourist visas that allow staying in the UAE for a period of (90 days) and entry for one time only, or for multiple times as required first.