Recently, I was thinking, perhaps Lix should include the time zone in the replay filename.
This feels overkill tbh. I don't think it's really necessary to account for timezones at all; presumably, the main intent behind putting the time in the filename isn't to actually communicate the time of recording, but simply as an easy way to ensure unique filenames for the replays.
If there really was a desire to account for timezones, rather than making the filename longer, I'd suggest using UTC instead of local time when generating the filenames.
Hmmm yeah maybe that's fair; I wouldn't want the time zones to be normalized to UTC because then that would create confusion about timestamps before this potential update was added; I'd rather just keep things they way they are then that. Perhaps the time timezone could instead be added in someway to the markup of the replay files themselves instead?