A Hungary Tourist Visa allows you to stay in Hungary and the broader Schengen area for a maximum of 90 days within any 180-day period. It is important to note that this 90-day limit applies to your total stay across all 29 Schengen member states combined, not just Hungary. Overstaying your permitted duration is a serious violation of Schengen regulations and can result in fines, deportation, and future visa rejections. Always keep track of your entry and exit dates carefully to ensure you remain within the permitted stay at all times.