This is a console and ‘say’ command.
It shows the current server time in the top left of the screen.
If your server time is wrong you can use the following cvar to offset the time to the correct value
// mani_adjust_time cvar allows you to specify the number of minutes to add or subtract // from your server clock when you type thetime in game. If you server is 20 minutes // fast set mani_adjust_time -20, if it is 30 minutes slow set mani_adjust_time 30. mani_adjust_time 0