Although TikTok initially limited the videos people made to just 15 seconds, you can now also make or upload videos of up to 60 seconds. To shoot a 60-second video, click on the + button to go to your recording screen. At the bottom, you will see '15s' highlighted. Scroll left on this to select '60s'. If you want to record less than 60s, tap the Timer button and adjust the bar to set your desired recording limit. When you're ready, tap Start Shooting.