At the beginning of the guarding shift, run the command '!timedate' and take a screenshot of the screen that includes full in-game details such as the leaderboard.
At the end of the guarding shift, run the command '!timedate' and take a screenshot of the screen that includes full in-game details such as the leaderboard.
Attach both of these screenshots to the guarding time submission. If both the beginning and end screenshots are not attached, the submission will be voided.