A Luxembourg Visit Visa lets you stay in Luxembourg and other Schengen countries for up to 90 days every 180 days. The visa sticker shows the exact number of days you’re allowed and how long the visa is good for. You should monitor how long you stay in the Schengen Zone so you don't stay longer than you're allowed. All Schengen short-stay visas follow the 90/180 rule, which means you can only stay in the Schengen Area for a total of 90 days within any 180-day period.