Here are some helpful tips aimed at scheduling events and other time-based activities. Above all, try to take into account the needs of both the organizers and guests.
Of course it is not always possible not to conflict with another event, but it is always worth checking that you are not too close in date to something very thematically similar to your event. On the other hand, if a similar event is happening in a nearby city or county, it could be worth reaching out to coordinate and encourage attendees (especially an international audience) to consider coming to both events.
Jo Summers @profaniti on Twitter
Leland Heller
Jim Munroe