<p>It seems to me that it is up to 20h or 24h, <strong><em>but I am more inclined to answer that 20h.</em></strong> 24h.</em></strong> It should also be noted that the brass chest covers many places in Tibia and can be played back once a day. i<u>t is different in the box with the "free items" achievements - there are many in the game, but you have a cooldown on all the boxes.</u></p>