I am using Memories app on Nextcloud AIO. I have DCIM of my Android phone automatically uploaded to Nextcloud. In the Files tab, all the photos and videos are in the correct time order. But in the Memories tab, the photos are in the correct time order, but the videos appear to be in UTC time. Therefore, videos taken in around the same time as photos are shown 8 hours early in the timeline.
I have checked that the order by date works normally for Files and through Nextcloud Windows client. So only memories app is affected by this bug.