WFDF tournaments often set a fixed timeline to follow before a game to have the captains meet, verify the roster, do the flips etc. If a teams shows up late, with respect to the pre-game timeline, but just in time for playing - the whole pre-game activities need to be rushed to start the game on time.
Does the time a game starts is the time the first pull goes up, or the time the prescribed official pre-game activities start?
Also, there are prescribed durations given for the time between points at official tournaments. If teams choose to ignore these timings (the time-keepers whistles have no effect) what is the respective rule to come into effect - or can the timekeepers just be ignored? A deduction in "Rules knowledge and use" or "fairplay" seems very weak, since such behavior can simply let the clock run out and help you rest players.
If a team shows up late, the rules in section A5 and A7.3 of the Appendix apply, especially A5.2.2 which says if one team isn't present, the team that is present gets to make the choices about O/D and end zones.
If a team takes too long between points, the opposition can call a violation as per section A5.4 of the Appendix.