Edit time & date directly in the Metadata of RAWs

I often forget correcting the camera time immediately when I travel through time zones or when we change between summer/winter time in Germany.

Therefore I often make some photos with the wrong time and just notice it afterwards.

Because I save both the RAWs and the final edited files on my server, I want all files (not only the exported edits) to have the correct time stamp so that they get displayed in the correct order.