Dahua Inaccurate Time Related Issues

DezertManiac

DezertManiac

Getting the hang of it
Nov 2, 2018
66
92
CA
Ok, guys what is the proven trick on Dahua cameras to get the time to remain accurate. Have only installed different models of Dahua cameras to family and friends, and on their businesses. Hit or miss on some of these cameras,, also how do you deal with DST settings, you guys using auto or manual update?

Thank you!
 
I use Dahua PoE NVRs that keep time for the cameras and it’s pretty good.
 
DezertManiac said:
Ok, guys what is the proven trick on Dahua cameras to get the time to remain accurate. Have only installed different models of Dahua cameras to family and friends, and on their businesses. Hit or miss on some of these cameras,, also how do you deal with DST settings, you guys using auto or manual update?

Thank you!
Click to expand...
Unless the cameras have access to a NTP time server OR are connected to a NVR or PC that does they will drift.

What is your setup?
 
The key is to set the camera NTP Interval time. Generally found when logging into the camera under > Settings > System > General > Date & Time > NTP Time > Interval. The path will be slightly different for the newer Web 5 (blue background) cameras.

For Dahua cameras, my system is to sync to a NTP time server every 15 minutes. Some of the older cameras limit update time from 0 to 30 minutes, while the newer models have a greater range.

Each camera will drift, some negative, some positive. Others will be stable, within one second for long periods of time. While others not so much.
 
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Assuming your cameras don't have internet access (they shouldn't), you should have an internal source of network time (NTP server). That could be your NVR, a PC, or your router.

In my case, the router (e.g. 192.168.1.1) is setup to be the source of NTP so that's what is configured in the NTP settings of each camera.

Mine are set to update about every hour, but not exactly every 60 minutes. I've got them set to 57, 59 or 61 minutes so they end up with staggered calls throughout the day.
 
VideoDad said:
Assuming your cameras don't have internet access (they shouldn't), you should have an internal source of network time (NTP server). That could be your NVR, a PC, or your router.

In my case, the router (e.g. 192.168.1.1) is setup to be the source of NTP so that's what is configured in the NTP settings of each camera.

Mine are set to update about every hour, but not exactly every 60 minutes. I've got them set to 57, 59 or 61 minutes so they end up with staggered calls throughout the day.
Click to expand...
Could you explain how you did this? Time discrepancies on my cameras is one of the biggest annoyances I have keeping up with a dozen or so cameras.
 
TuckNTruck said:
Could you explain how you did this? Time discrepancies on my cameras is one of the biggest annoyances I have keeping up with a dozen or so cameras.
Click to expand...

With Dahua PoE NVRs its automatic and set on the time/day setup tab.

Unless you wish to change it, its automatically enabled

NVRTime.jpg
 
Some routers can be setup to serve NTP time if running Asuswrt-Merlin Firmware which is free.

Enable NTP.png

NTP Settings.png

Basic instructions for setting up a NTP time server for your LAN.

For the Asus AU-86U the settings can be found under Administration (left menu) then System top tab. Change line "Enable local NTP server" from No to Yes. Once done two lines will appear and change both from No to Yes. And be sure to "Apply" the change.
 
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