Offline log files use the timestamp for filename, would be great if the file metadata timestamps matched too.

Files can have three dates associated, the Creation timestamp, the Modified timestamp, and the Archived timestamp.
These are shown to the user in various places, but usually only the modified date is shown (or created timestamp is sometimes used, but never usually the archived date as it traditionally related to backup status).

The default for all log files is 01/01/2025, but it would be wonderful if the creation and modified timestamps were also set to the time used in the filename (assuming the RTC is valid).

When mentioned to Brent, he highlighted this example from the file operation examples:
https://github.com/greiman/SdFat/blob/master/examples/RtcTimestampTest/RtcTimestampTest.ino

Start with the linked SdFat RtcTimestampTest/RtcTimestampTest.ino example, then locate the code that creates offline log files. Verify how the filename time is obtained and whether the RTC is valid. Done means creation and modified metadata timestamps use that time instead of the default 01/01/2025, while invalid RTC behavior is defined.

Written by the indexing model from the issue text.