Planet NVR-810 User Manual page 39

Play by specific time
If you know when a recording was taken place, you may choose the
"Play by start time" from the "Search Method" drop-down list.
Then you will be prompted to enter a specific time and date for the recorded video.
Use the button to select month, date, and year.
Search by event (Most Recent)
This function quickly displays the most recent event recordings from the selected
channels, displaying the most recent result top down. You may click "Update" to
update the list to display the most recent result.