2022.05.12 18:53 "Re: [Tiff] best tiff tag names for start and end datetimes?", by Kemp Watson
Speaking from close to no knowledge here...
Is it that critical to know both start and end times of an export? Can you perhaps average them to one value?
Can you assume DateTime is UTC with your particular files and use cases?
Not sure if this is helpful, just posing a simple position as a starting premise.
W. Kemp Watson
Objective Pathology Services
tel. +1 (647) 783-4431