The on-screen clock jumps forward after a video export

If an exported video shows a time jump or brief pause, this does not yet establish deliberate deletion. The feature may have arisen during recording, export, file joining or re-encoding. The received file should be retained without saving it again, together with original system recordings where available. A separate question is whether the time overlay belongs to the recording or was added by playback software.

What needs to be clarified

The task could identify observable sequence discontinuities and assess whether the materials connect them to a particular processing stage.

Materials to prepare

The file as received and an account of the export method.
Original recordings and adjacent system files where lawfully retained and available.
Information about the camera, recorder, player and time-display settings.

What to compare

Whether file duration, frame sequence and displayed timeline are consistent.
Whether the same feature occurs in the original recording and available export versions.
Which changes may be explained by format or processing and which need further source data.

Possible outcome of the analysis

A possible output is a frame-linked diagram of time gaps, documented features and an assessment of what can be concluded about the submitted material's continuity.

Limits of the conclusions

The absence of obvious signs of editing does not prove that a recording is complete. One re-encoded copy may not establish the method, author or time of alteration; moving a player's progress slider is not a substitute for examination.