The CTWG currently holds one bi-weekly call for the NA/EU time zones (another call for the APAC time zones will be added as soon as there is enough demand).
US/EU - Alternate Mondays — 10:00-11:00 PT / 17:00-18:00 UTC (Upcoming dates: Nov 23, Dec 8)
Send an email to concepts-terminology-wg@lists.trustoverip.org to request a calendar invite (you can subscribe to the mailing list at lists.trustoverip.org).