My observation is that a new daily build usually shows up in its individual folder around 7 minutes after midnight Pacific time. Then what must be a separate process a few hours later, the "latest" files get copied into the "LATEST" folder.
Yep, the build runs at midnight and takes some number of minutes to complete. That's the 00:07 timestamp you see. Then, a separate cron job runs at 03:00 to update the link. It's silly, but since the builds go over FTP, which can't do links (AFAIK), I have to have something else update the latest link. Normally nobody notices this.
There are similar processes that build the Fedora RPMs as well - I happened to see the e-mail fore the (late) new build yesterday and "kicked" the script to run manually. Looks like they made it OK.
Mike, N0SO