While most IETF work takes place online, including on email lists, meetings and other events such as Hackathons provide in-person opportunities to advance work.
IETF Meetings start Saturday and run through Friday afternoon (13:30), with late scheduling changes.London, UK
IETF Meetings are held three times per year around the world to promote in-person attendance by IETF participants.
The work of the IETF is largely conducted over mailing lists; however, some working groups also occasionally hold "interim" meetings, either face-to-face or virtually via conference calls.
IETF meetings are held three times a year. The first IETF meeting was held in San Diego in January, 1986.