In the UK, there are two companies that run events in more than twenty cities: Speed Dater and Slow Dating.The largest speed dating company in Australia is Fastlife. Several online dating services offer online speed dating where users meet online for video, audio or text chats.
At the end of each interval, the organizer rings a bell, clinks a glass, or blows a whistle to signal the participants to move on to the next date.
At the end of the event participants submit to the organizers a list of who they would like to provide their contact information to.
The time limit ensures that a participant will not be stuck with a boorish match for very long, and prevents participants from monopolizing one another's time.
On the other hand, a couple that decides they are incompatible early on will have to sit together for the duration of the round.
Other studies found speed-dating data useful as a way to observe individual choices among random participants.
A 2005 study at the University of Pennsylvania of multiple Hurry Date speed dating events found that most people made their choices within the first three seconds of meeting.in that everybody is purportedly there to meet someone, they are grouped into compatible age ranges, it is time-efficient, and the structured interaction eliminates the need to introduce oneself.Unlike many bars, a speed dating event will, by necessity, be quiet enough for people to talk comfortably. Participants can come alone without feeling out of place; alternatively it is something that women who like to go out in groups can do together.Usually advance registration is required for speed dating events.Men and women are rotated to meet each other over a series of short "dates" usually lasting from three to eight minutes depending on the organization running the event.There are many speed dating events now in the United Kingdom, Canada, and the United States.