Changing time on Dahua NVR

batcave

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This happened to me a few years ago and I forget the fix. I did something months ago to change the time ahead by 12 hours. I have changed the time a few times since but it always reverts back to the wrong time. I am missing a step but forget what. Lol.
I go Main menu, system, general date and time, manually change the time then click save and apply. When I leave the nvr, all looks good. Then later on I notice it’s messed up again. Lol.
 
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Do you have it configured to get time from an ntp server?
Is your tz set correctly?
 

batcave

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I think maybe my GMT+\- was wrong. Thank you Robert. I now have it holding st the correct time. Instead of GMT -5. Hours I had to set at GMT-6 to account for daylight savings time. There is no way to do daylight savings time automatically on this thing is there?
 
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