From SPDX Wiki
This is the working area for the technical team. This team has primary responsibility for drafting the specification and developing documentation, templates, samples and tools.
The Technical Team meets weekly on
Tuesdays at 17:00 UTC (and best guess for local time - 10:00AM PDT, 11:00 MDT, 12:00PM CDT, 1:00PM EDT, 18:00 WAT, 19:00 CEST). Optional dial in number: +1-415-881-1586 No PIN needed