They may have updated just now, but https://www.calendlystatus.com/ does show a "Major outage" on calendly.com and a red notice with

Investigating - We are currently investigating this issue.

Feb 20, 2025 - 04:37 EST

Update:

It's now green and says:

  Feb 20, 2025
  Calendly  Outage
  Resolved - This incident has been resolved.
    Feb 20, 04:57 EST
  Monitoring - A fix has been implemented and we are monitoring the results.
    Feb 20, 04:49 EST
  Investigating - We are currently investigating this issue.
    Feb 20, 04:37 EST