Just make sure the camera doesn’t start counting over again for filenames. Some do when removing battery and such – so make sure that is part of the production to postproduction procedures and you should be fine.
The “time of creation date” does get converted to a time of day timecode and can be found in the Auxiliary TC1 column. I do find that useful when working with a director and you get the “I’m sure we shot something on Tuesday after lunch” and you can use that to narrow down the range.
It’s sort of a decision you need to make before editing – insert the timecode as a real value with QTChange or go with 00:00:00:00 and make sure that filenames are unique (well this should always be the case, but even more so when timecodes are all the same). This ensures that any third party application will respond to the clip the same way – such as in an Resolve conform.
Michael