Skip to main content

The OpenChain Project has various work groups, special interest groups and local work groups around different markets and geographies. It is recommended that you join our main mailing list and then select other mailing lists based on your organizational needs. All groups are open, all access is free.

Our Global Call and Event Calendar

Times are displayed as UTC by default
Check US Pacific offset / Check European offset


At the bottom of this page there are instructions for
adding this calendar to your online, mobile or desktop account.

Below you will find links to our main mailing list and Slack, and then links to all of the work groups, special interest groups and local work groups that we host.


Be Part Of Our…





Core Work Groups:





Community Work and Study Groups:





Industry-Specific Work Groups:





Regional Work Groups:







Add our Global Calendar to iOS, Android, Google or Outlook:


Copy this iCal URL

https://calendar.google.com/calendar/ical/c_08seb6095ofjtfr5fjb5tabgl4%40group.calendar.google.com/public/basic.ics

In Google Calendar:

Scroll down to “Other Calendars” in Google Calendar
Click the + button
Select “From URL”
Paste the iCal URL in the “From URL” field 
Click “Add Calendar”
Click the + button

In Microsoft Outlook Web:

Click ‘Add calendar’
Select ‘Subscribe from web’
Paste the iCal URL and press ‘OK’ and/or ‘Yes’

In Microsoft Outlook 365:

Click ‘Add Calendar’
Select ‘From Internet’
Paste the iCal URL and press ‘OK’ and/or ‘Yes’