AllDates- change photo/video metadata (year:month:day hour:minute:second)FileModifyDate- change file timestamp./in- input folder./out- output folder
exiftool.exe "-AllDates+=4:7:17 12:50:28" "-FileModifyDate+=4:7:17 12:50:28" -o ./out ./inVia WolframAlpha, example:
2017.01.01T09:09:32 to 2021.08.18T22:00:00