That "Z" in the timestamp is Greenwich Mean Time (GMT)
When you see this in the reports that you download, you might wonder what does it all mean!
2023-01-18T13:14:20.000Z
This translates to January 18th, 2023 at a time of 1:14 PM Greenwich Mean Time and 20.000 seconds after 1:14 PM.
This stamp would be 8:14 PM Eastern Time (5 afters earlier than Greenwich Mean Time)
The "Z" is what GMT was/is called in nautical time. Time zones would be broken down by letters of the alphabet and GMT was Z. There is a good Wikipedia article here on this!
The "T" in the timestamp simply means that "time" follows the date before it.