Time changes that occur every year, to or from Daylight Saving Time (DST), can affect the way video archives are viewed and queried in Security Center.
Time changes do not prevent recording of video data from your cameras. The Archiver always records using the Coordinated Universal Time (UTC), which never changes according to the seasons, and archives queries are always transmitted to the server using UTC timestamps. This isolates the archives from the effects of time changes. However, because Security Desk and Config Tool can be configured to use (and display) a time zone other than UTC, and for which DST may apply, different behaviors can be observed whether the time is adjusted backward or forward.
NOTE: The Eastern Standard Time (EST) time zone is used as an example, however this applies to all time zones that are also subjected to DST.