BlauTime is a free Android application developed by Alexandre THIL that helps users take beautiful photos during the blue hour, golden hour, and twilight. The app shows users when the blue hour occurs and provides photography tips and advice for capturing stunning photos during this time. Similarly, it also shows users when the golden hour occurs, which is the perfect moment to take incredible photos just before sunset and just after sunrise.

The blue and golden hour lasts for around fifteen minutes and varies depending on the day, geographical position, and orientation. The app is designed for everyone, and any camera, including smartphones, compact, bridge, and reflex cameras, can capture beautiful photos as long as the sky is clear. With BlauTime, users can take advantage of the perfect lighting conditions and create stunning photographs.