The time it takes for the Google Disavow tool to take effect can vary depending on a number of factors, such as the number of links you have disavowed and the complexity of your website's backlink profile. Generally, it can take several weeks or even months for Google to process your disavow request and for the changes to take effect on your website's search engine performance. It's important to note that the disavow tool is not a magic bullet, and it may not necessarily improve your website's search engine rankings overnight. Additionally, it's not guaranteed that your website will be removed from any manual action or algorithm-based penalties, it's just a tool to help you signal to Google which links you don't want to be taken into account. It's also important to monitor your website's search engine performance using tools such as Google Analytics and Search Console to see if there have been any changes. If you see improvements, it means that the disavow tool was effective. If not, you may need to consider other ways to improve your website's search engine performance such as removing bad links directly or building good quality backlinks.