When does my TAP bottle glow? October 04, 2021 20:15 Updated Once you have long-pressed the timer button on the bottom of the bottle, your bottle will glow hourly for the next 12 hours. Related articles How do I set-up my GLOW notifications for my TAP bottle? How many glow lights are available to choose from for my TAP bottle? TAP to TRACK Process for iOS (Apple) Phones When do I need to change my battery? How long is the battery life?