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Appendix N: Daylight Saving Time on your DVR
Appendix N: Daylight Saving Time on your DVR
You may have to adjust your system’s time during daylight saving months. The table below
illustrates the DVR’s that automatically adjust to Daylight Saving Time (DST), and DVRs that must
have their system time manually adjusted.
NOTE: Y
ou must configure and enable automatic DST on your DVR even if
your system supports the feature.
Why is the DVR timestamp important?
Your DVR’s time stamp is crucial when submitting surveillance video as court evidence. It is highly
recommended to double-check that your system has the proper time, even if your system
supports automatic DST adjustments.
When should I adjust my system clock?
In North America, most cities observe DST.
• In Mar
ch: the clock moves one hour forward
• In November: the clock moves one hour backward
The specific date in the month where DST s
tarts and ends varies each year. The table below
applies to North America only.
Daylight Saving Time 2010 - 2015
Year
DST Begins
2:00am
( + 1hr )
DST Ends
2:00am
( - 1hr )
2010 March 14 November 7
2011 March 13 November 6
2012 March 11 November 4
2013 March 10 November 3
2014 March 9 November 2
2015 March 8 November 1
Source: NASA (2010).
Retrieved online: http://eclipse.gsfc.nasa.gov/SEhelp/daylightsaving.html