The GSWG currently holds two bi-weekly calls for different time zones, first is mainly for US/EU TimeZone and second for APAC TimeZone.
US/EU - Alternate Thursdays — 14:00-15:00 EDT / 18:00 - 19:00 UTC
APAC - Alternate Wednesdays — 09:30-10:30 IST / 21:00-22:00 PDT / 04:00-05:00 UTC
Send an email to governance-stack-wg@lists.trustoverip.org to request a calendar invite (you can subscribe to the mailing list at lists.trustoverip.org).