How to Fix UniFi Protect Camera Time Sync Issues
- NVR system time/timezone wrong
- NTP not reachable/blocked
- Cameras sync time from the controller
Problem Description
UniFi Protect camera timestamps are wrong — events show the wrong time, recordings are offset from real time, or different cameras show different times. Camera timestamps come from the NVR's clock, which syncs via NTP. An incorrect timezone, no NTP connectivity, or a camera that has not synced its clock with the NVR causes time mismatches.
Why This Happens in Real Homes
UniFi Protect camera timestamps are wrong when the NVR's own clock is off, because the cameras sync their time from the controller — so fixing the NVR's system time and timezone corrects all of them. The usual root cause is the NVR unable to reach an NTP time server, or a misconfigured timezone.
Set the NVR's system time and timezone correctly in the console settings, and make sure it can reach NTP (the NVR needs internet or a reachable NTP server, with outbound NTP not blocked by the firewall). Once the controller's clock is right, the cameras resync to it. Verify the timezone matches the camera location, confirm daylight-saving handling, and restart to force a resync if timestamps stay off.
Symptoms
- Wrong camera timestamps
- Time off on recordings
- Timestamps drift
- Time doesn't match
- Wrong timezone on footage
- Clock wrong across cameras
- Timeline times off
- Time sync failing
Recognize these? Here's what usually causes it.
Common Causes
- NVR system time/timezone wrong
- NTP not reachable/blocked
- Cameras sync time from the controller
- Timezone misconfigured
- No internet for NTP
- DST handling issue
- Firmware issue
- Controller clock drift
Most fixes happen in the first 3 steps.
Do not ignore minor drift if evidence timelines matter operationally.
Tools & Requirements
Step-by-Step Solution
Check the NVR's system time and timezone
All camera timestamps in Protect come from the NVR's clock, not the cameras' internal clocks. If the NVR time is wrong: all camera timestamps are wrong by the same amount. Check: UniFi OS Settings > System > Date & Time. Verify the timezone matches your location and the displayed time is correct. If wrong: set the correct timezone. The NVR syncs time via NTP automatically — if the time is drifting: the NVR may not have internet access for NTP sync (see next step).
Verify NTP connectivity
The NVR uses NTP (Network Time Protocol) to keep its clock accurate. If the NVR cannot reach an NTP server (no internet access, firewall blocking port 123 UDP): the clock drifts over time. Test: from the UniFi OS shell (SSH into the NVR): run 'ntpq -p' to check NTP peer status. If no peers respond: the NVR has no NTP connectivity. Fix: allow outbound UDP port 123 in your firewall, or configure a local NTP server on your network (many routers provide NTP). After fixing NTP: the clock corrects within minutes.
Check individual camera timestamps against NVR time
In Protect: open a camera's live view and compare the on-screen timestamp with the current time on your phone. If the camera timestamp matches your phone but the timeline/events page shows wrong times: the NVR's timezone is wrong (event times are displayed in the NVR's configured timezone). If the camera timestamp is wrong in live view: the camera's own clock is offset. Restart the camera — during boot, it syncs its clock with the NVR. Persistent camera clock offset after restart: update the camera firmware.
Set the correct timezone for event display
Protect displays all event timestamps in the NVR's configured timezone. If you moved the NVR from a different timezone or the timezone was set incorrectly during setup: events display at the wrong time even though they were recorded correctly. In UniFi OS: Settings > System > Date & Time > set the correct timezone. Existing recordings keep their original timestamps — they will display correctly after the timezone change. New events will use the corrected timezone immediately.
Restart the NVR to force a full time sync
If the NVR clock was significantly off (hours or days): a restart forces a full NTP sync and redistributes the corrected time to all cameras. Restart UniFi OS: Settings > System > Restart. Wait 3-5 minutes for the full system to boot. After restart: check the time in UniFi OS and verify it matches your actual local time. All cameras resync their clocks with the NVR during the next communication cycle (within minutes of the NVR coming back online).
Quick Solutions
Still having issues? This is usually the deeper cause below.
If pairing fails after multiple attempts, the device may still be registered to a previous account — factory-reset it before trying to add it to a new one.
Time sync accuracy is critical for incident forensics and cross-camera correlation.
Pairing failures almost always come down to distance during the initial handshake — manufacturers seriously understate how close you actually need to be.
- NVR system time/timezone wrong
- NTP not reachable/blocked
- Cameras sync time from the controller
- Timezone misconfigured
- No internet for NTP
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
UniFi Protect provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your UniFi Camera Time Sync.
Source: help.ui.com
Need More Help? UniFi Protect Support
Note: The contact information below connects you directly to UniFi Protect's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
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