Timing Options; Recording Time Selection; Wait After Shooting - Nikon Z9 Settings Manual

"Timing Options"

Use the [Timing options] item to choose how long the camera
continues to shoot after auto capture is triggered and the minimum
length of time it will wait before beginning shooting again.

Recording Time Selection

The length of each individual burst can be chosen from [OFF] (no
limit) and values of from 1 second to 30 minutes. When an option
other than [OFF] is selected, shooting will continue for the selected
time even if the trigger conditions are no longer met. Depending
on camera settings, shooting may end before the expiration of the
selected time.

Wait After Shooting

The minimum length of time the camera will wait before beginning
shooting again can be chosen from values of from 0 seconds to
30 minutes. Once a burst is completed, shooting will pause for the
selected time even if the trigger conditions are met.
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"Timing Options"