When I travel to a time zone different from my own (Eastern), I always adjust the clock on my DSLR to the time at the current location. If I import these photos into my iPhone Photos app and merge them into an album with iPhone photos taken at the same location, the photos are not sorted correctly by time even though the date/time taken is correct when I look at EXIF metadata. For example, DSLR photos taken in Central European time zone were sorted in an album with iPhone photos taken six hours later. Is the fact that my DSLR doesn’t have a GPS causing the discrepancy? Is there any way to fix this?