In order to ensure your timezone is set correctly, you will need to set the timezone. This will need to be done on the unit itself, using a connected monitor and keyboard/mouse.
Start by clicking on the settings cogwheel on the left-hand menu bar.
Scroll down in the left hand side of the settings menu to find the Date & Time option, then click on it.
Click Time Zone, then use the globe to select where your timezone is, clicking the x in the upper right when done.