Timestamp (UBox)
The camera will use the time on internet as its timestamp. If the camera is not connected with WiFi (or the router itself temporarily lost internet connection), the camera will lose its sense of time. The videos recorded without connection will have no timestamp.
Besides, the videos recorded without connection will be saved on default date instead of real date. More details about this issue in: https://leyosovcamera.com/pages/video-storage-without-wifi