Why Is My Night Owl DVR Showing the Wrong Time After a Power Outage?

Problem Description

After a power outage your Night Owl recorder shows a timestamp that is hours or days behind reality, daylight saving is wrong, or the system reset to factory 2020-01-01. Per the Night Owl DP2 Series manual the DVR holds time with a small coin-cell battery on the mainboard; when that battery weakens, power loss wipes the real-time clock and the recorder boots with the wrong time until NTP re-syncs or you set it manually.

Symptoms

• DVR clock shows 2020-01-01 or similar default
• Time is one hour off after DST changeover
• Timestamp on recordings drifts a few minutes per week
• Motion events logged under wrong date
• Schedule recording fires at the wrong hour
• GMT offset reverts on every reboot

Recognize these? Here's what usually causes it.

Common Causes

• Mainboard coin-cell battery weak or dead
• NTP disabled so clock drifts unchecked
• Wrong GMT time zone set in System menu
• DST auto-adjust disabled in settings
• Ethernet disconnected so NTP cannot reach
• Cheap power adapter surging during outage

Tools & Requirements

Step-by-Step Solution

1

Set the Correct Time Zone First

Right click on live view, sign in, then open Main Menu, System, then General. Click the GMT dropdown per the DP2 Series manual and select your local zone (e.g. GMT-05:00 US Eastern). Tick Daylight Saving Time if your region observes DST. Click Apply before leaving the screen. If the time zone is wrong, NTP will faithfully sync you to the wrong hour forever.

2

Enable NTP and Pick a Server

Still in System > General (or a separate NTP tab depending on firmware), tick Enable NTP. Set Server Address to pool.ntp.org and leave Port at 123. Set Sync Period to 24 hours (Daily) so the clock refreshes every day and corrects any drift. Click Update Now. Within 10 seconds the system time should snap to current. Click Apply and return to live view to confirm the new timestamp in the corner.

3

Verify Ethernet or Wi-Fi Connectivity

NTP requires outbound UDP port 123 to the internet. Open Main Menu, Network. Confirm IP Address, Gateway, and DNS are populated (DHCP is recommended). If the Network tab shows No Internet, reconnect the ethernet cable to the router or re-enter 2.4GHz Wi-Fi credentials. Run Update Now again. If still failing, your router or firewall is blocking NTP; allow UDP 123 outbound to pool.ntp.org.

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4

Replace the Coin-Cell Clock Battery

If time resets every time power drops even with NTP on, the internal CR2032 battery has failed. Power off and unplug the DVR. Remove the top cover screws. Locate the silver coin cell on the mainboard (usually labeled BT1). Pop it out with a plastic pry tool and install a fresh CR2032, positive side up. Close the cover, power on, re-set time zone, enable NTP. The real-time clock now survives future outages.

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5

Protect With a UPS Going Forward

Even a small 400VA uninterruptible power supply will keep a Night Owl DVR running through brief outages that used to reset the clock and sometimes corrupt recordings. Plug the DVR 12V DC brick and the internet router both into the UPS battery-protected outlets. A stable internet connection during the first 60 seconds of a brown-out keeps NTP working and prevents the clock from ever drifting far enough to notice.

Quick Solutions

Still having issues? This is usually the deeper cause below.

Need More Help? Night Owl Security Support

Note: The contact information below connects you directly to Night Owl Security's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.