||It is very common misunderstanding that when coding phase was moved from xx:00 to xx:05, that registration was moved too.
Reason for moving start from xx:00 to xx:05 described Cricicle in previous post. In few SRMs the start was on xx:02, but it happend that room assignment was finished after coding phase start and as we know - if room assignment is not finished you cannot enter (but I remember just one such SRM, when it started on xx:02, AFAIK it didn't happen when SRM started on xx:00).
In complete rules there is concrete time specified when the registration ends.
Maybe there are some improvements possible
- add registration end time information on event page
- registration end time is not in schedule in arena too
- maybe it is possible add some warning to "Event Time Announcer" page
On the other hand more experienced coders know that already, so it's questionable if it is worth.