What would you do differently if you could travel back in time? Modern testing frameworks have transformed this whimsical question into a practical one, by creating their own “time machines”. Cypress’ timeline, Playwright’s trace-viewer and Replay.io’s recordings have offered a retrospective look into the life of a test, ensuring that developers and testers are no longer limited to basic error messages on test failures. However, these different time machines will bring different insights. So how do you decide? The decision on which one to use can make a significant difference in the time spent on debugging a flaky test. In this presentation I will be focusing on comparing different time machine solutions and showing various flaky test examples to demonstrate how to navigate through the debugging process and believe it or not - make it fun.