rak313 0 Posted January 28, 2019 I have several hikvision cameras that i use with their free iVMS 4200 v3 software for recording video. I set them to the same ntp server for time sync, but notice about a 1 sec variation in the camera clocks. I assume this is because the cameras don't actually run ntp, and instead just periodically set their clocks to the ntp server’s time. I find this a bit annoying, and was wondering if anyone has successfully loaded ntp onto the cameras, so that they are synced much closer together. Thanks Share this post Link to post Share on other sites
SunnyKim 2 Posted January 30, 2019 Clocks are running differently faster or slower, in all different devices, Just as yours with your friend watch. Your server can be networked to a world standard time, just as your smart phone. But your IP cameras are not, to our sorry. That's one of disadvantages for IP camera system. Share this post Link to post Share on other sites
tomcctv 187 Posted January 30, 2019 13 hours ago, SunnyKim said: That's one of disadvantages for IP camera system. there are many camera that do NTP but in the ops case having ip cameras stream to a recorder it is common practice to switch off camera time .... and the most important time is what the recording device is using and displaying of footage Share this post Link to post Share on other sites
rak313 0 Posted February 1, 2019 On 1/30/2019 at 5:47 AM, tomcctv said: there are many camera that do NTP but in the ops case having ip cameras stream to a recorder it is common practice to switch off camera time .... and the most important time is what the recording device is using and displaying of footage The ip camera has an option to sync the time to an NTP server. Its just not using NTP software on the camera, and so the camera time drifts a bit in between updates. So i want to add ntp software to the OS on the camera, so that the time will be in better sync than about 1 second off. Since the internal camera OS is linux, it should be easy to add ntp. So im wondering if anyone has done it. Share this post Link to post Share on other sites
tomcctv 187 Posted February 3, 2019 On 2/1/2019 at 7:37 PM, rak313 said: so that the time will be in better sync than about 1 second off. How long does it take to be 1 second off week month year ? why do you want both displayed ? Share this post Link to post Share on other sites
