Mode M (Manual) - Nikon D5500 Reference Manual

Mode M (Manual)

In manual mode, you control both shutter speed and aperture.
Shutter speeds of "Bulb" and "Time" are available for long time-
exposures of moving lights, the stars, night scenery, or fireworks
(0 121).
1
Rotate the mode dial to M.
Mode dial
119
P, S, A, and M Modes