Why are the dates of the MOV files not corresponding to the JPEG files of my FujiFilm XT20?

I have imported many files from my XT20 camera on June 6, around 10 pm local time (Sydney).

I took all my shots on June 6th (between 7pm and 9pm).

However, after import, a number of MOV files dated June 7 in the OSX Photos app are:

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When I checked one of the MOV files, here are the details:

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But all these photos and clips were taken at about the same time. The rest of the images and a MOV file (captured by iphone) are grouped under June 6th.

The duration on the camera is also good, as you can see in the following photo

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What is causing this discrepancy?