In August of 2005 the United States Congress passed the Energy Policy Act, which changed the dates of both the start and end of daylight-savings time (DST). Once this law went into effect in 2007, DST now begins at 2:00 A.M. on the second Sunday in March and ends at 2:00 A.M. on the first Sunday in November.
Since most electronic devices are already programmed with the DST feature set, there is no way for any electronic product with a time/clock function that was produced prior to 2007 to know about the new DST time changes. This means that such devices, especially portable devices like IC recorders, cameras and camcorders, will need to be manually adjusted to reflect the new DST start and end times. It is recommended that if your product was produced prior to 2007 and has a DST setting, that you turn that feature off, otherwise the device will continue to change using the old DST settings.
Some electronic products (TVs, VCRs and DVRs to name a few) have auto clock-set options. If the auto clock-set option is enabled, then the time is updated automatically with the signal provided by the broadcaster or service provider. If your device does not have an auto clock-set option, you will need to manually adjust for the start and end of DST.
IMPORTANT: For model-specific information about time/clock setting options available for your product, refer to the operating instruction manual.