For Visiting & Praying
Opening Times / Closing Times
Opening For Friday
Sultan Ahmet Camii (Blue Mosque) is still a working mosque, and is therefore closed to tourists during prayer time. In general, the opening hours of the Blue Mosque Turkey are from 08:300 am until one hour before dusk each day, excluding 90 minutes each prayer time, and two hours during Friday noon prayers.
Visiting for Pray
Sultan Ahmet Camii (Blue Mosque) is still a working mosque, It is opening before morning pray around 05:30 for All muslims from any country or nationals until last praying time , Also anyone can visit most for pray ( no need to be muslim ) ( but you can not take picture on pray time )
You can check the pray time on the link .