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Apple’s Photo app for Mac has a problem with importing/exporting video files. More specifically, imported videos may have an incorrect date (timestamp) if those videos were previously exported from another Photos library. Instead of showing the date and time the video was recorded, Photos shows the import date/time. As a result, the imported videos are placed incorrectly on your timeline.
The good news is that there are three workarounds:
- Use AirDrop to copy videos between Photos libraries (recommended)
- Share the videos using an iCloud Link (iOS 12+)
- Copy the raw video files directly from the Photos library, instead of using the export function
My photo and video workflow
Both my wife and I take a lot of photos and videos with our iPhones. Every so often, we create photo books or albums of the best photos taken. Additionally, I make a quarterly video of the kids to share with overseas family members. For that reason, I have to transfer photos and videos periodically from my wife’s into my Photos libraries.