Your dashboard footer clock, as well as our Clock widget, uses your computer or device's clock and time zone as a reference.
If your dashboard footer clock is showing the incorrect time, make sure that the time and time zone on your computer or device is correct.
If you'd prefer a 12-hour clock on your dashboard, turn off the dashboard footer clock from under Settings > Customize appearance > Clock. Then, just add the Clock widget from our integrations and set it to the 12-hour format.