Nikon D780 DSLR Camera (Body Only) - Manual (Page 77)

31 First Steps
2
Set the camera clock.
Use the multi selector and J button to set the camera clock.
The clock can be adjusted at any time using the [ Time zone
and date ] > [ Date and time ] item in the setup menu.
Select time zone Select date format
Select daylight saving time
option
Set time and date (note that the
camera uses a 24-hour clock)