Assalamu Alaikum

Each Salah has a window of time in which it can be prayed.

Begins tells you when the prayer time starts.

Jama'ah tells you when Chingford Masjid performs the prayer together as a congregation.

If you miss the Jama'ah time, you have not necessarily missed the Salah. You can still pray it within its prayer window.

Fajr ends at sunrise. The other prayer windows continue until the next prayer begins.