In Tales of Pirates, the Time Gel is an item that can stop the double-effect. It costs 20.000 gold. When you Double-click on it, having a Time-Sand on your inventory, so you can have a double-effect time active, the double-effect time stops working and consuming. So if you had for example, 2 hours left of your claimed double-time, it will stop giving you the double-time effect and also stop consuming the time. You can only re-activate the double-effect time by buying and using another Time Gel, or buy discarding the stopped Time-Sand.
Click here and you receive a message from System chat box, saying how much double-effect time you still have to use on the week. Explain that you can claim as much as you want until your week double-effect time ends.
Here is one of the best things created on this game. It is a much fair double-exp system than the Multiple Exp Carnival. As the server time does not harmonize with their time, that players that live in places with a GMT time to much different from Server, wasn't able to enjoy the Multiple Exp Carnival. So this system let's the player manage this by his on time.
However, of course, this also gives IGG new ways to gain profit by selling items (Tales Of Pirates money) that raise the benefits and make the Double-Effect from Pucca even more manageable. It is very addictive, though. Clicking without spent a single coin, on a NPC option and seeing your exp flowing on double effect or your drop-rate is an addictive thing. Be carefully, otherwise you can easily use up all your 10 hours of the week in 2 or 3 days.