Where the function is intended for
A shift is sometimes only noticed when someone is looking for images of a specific moment. Especially after summer time or a system change, an hour difference can occur.
advice
Check Dahua time and daylight saving time
The clock of the camera and recorder is part of the reliability of every timeline and export.
Setting or condition
Compare the displayed time on the camera, recorder, and app with the local time. Check the time zone and settings for summer and winter time before correcting individual devices.
Making a conscious choice
Choose one consistent time source and adjust settings according to the system design. Avoid manual corrections on one camera if the recorder or network source causes the deviation.
What you check afterwards
Record a test recording around the adjusted time and confirm that the live view, timeline, and export display the same time. Check again after the following time change.
Frequently asked questions
Is a one-hour difference always summer time?
Often, but also check the time zone and chosen time source.
Why does time affect the export?
A wrong clock makes it harder to reliably link event and fragment.