By default, signs are set to retrieve the official date and time from an internet time source on a regular basis. This should prevent your sign from drifting out of sync with official time, or when the time changes as with Daylight Saving Time. However, this requires that the correct timezone information is set on your sign. If you are seeing an incorrect current date or time, follow the instructions to update the time on your sign with a USB drive and specify your correct timezone.
Please note that signs that are not connected to the internet will not be able to automatically retrieve official date and time information. For these signs, you must update the time via USB drive for time changes.