Nikon D6 Reference Manual page 847

Timecode
Choose whether to record time codes giving the hour, minute,
second, and frame number for each frame when recording
movies. Time codes are available only with movies recorded in
MOV format. Before using this feature, select [Time zone and
date] in the setup menu and make sure that the camera clock is
set to the correct time and date.
Option
[Record
timecodes]
G button U 1 movie shooting menu
•
[On]: Record time codes. The time code appears in
the monitor.
•
[On (with HDMI output)]: Time codes will be
included with footage saved to external recorders
connected to the camera via an HDMI cable. The
camera supports Atomos SHOGUN, NINJA, and
SUMO-series Monitor recorders.
•
[Off]: Time codes are not recorded.
1 The Movie Shooting Menu: Movie Shooting Options
Description
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