All Systems Operational

Uptime over the past 90 days. View historical uptime.
Scheduler Operational
90 days ago
99.9 % uptime
Today
API Operational
90 days ago
99.9 % uptime
Today
Background Processing Operational
90 days ago
99.9 % uptime
Today
Developer Dashboard Operational
90 days ago
99.9 % uptime
Today
Major Calendar Providers Operational
Apple Operational
Google Operational
Microsoft 365 Operational
Outlook.com Operational
Conferencing Services Operational
GoTo Operational
Zoom Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Nov 22, 2025

No incidents reported today.

Nov 21, 2025

No incidents reported.

Nov 20, 2025

No incidents reported.

Nov 19, 2025

No incidents reported.

Nov 18, 2025
Increased API error rates in our US data center
Postmortem - Read details
Nov 19, 15:48 UTC
Resolved - Between 16:55 UTC and 17:03 UTC we observed increased API error rates in our US data center. During this time customers may have received 401 Unauthorized or 500 Internal Server Error responses. Since that time error rates have returned to normal levels.

A postmortem of the incident will take place and be attached to this incident in the coming days.
Nov 18, 18:33 UTC
Update - Error rates remain at normal levels, and we are continuing to monitor.
Nov 18, 18:18 UTC
Monitoring - Between 16:55 UTC and 17:03 UTC we observed increased API error rates in our US data center.

Error rates returned to normal by 17:03 UTC. We are monitoring and investigating the root cause.
Nov 18, 17:37 UTC
Nov 17, 2025

No incidents reported.

Nov 16, 2025

No incidents reported.

Nov 15, 2025

No incidents reported.

Nov 14, 2025

No incidents reported.

Nov 13, 2025

No incidents reported.

Nov 12, 2025
Google calendar sync degraded
Resolved - Between 18:15 UTC and 18:28 UTC, we observed elevated error rates, and Google Calendar users may have experienced delays with calendar reads and writes. Since 18:28 UTC, all Google Calendar operations have been functioning as normal.
Nov 12, 18:56 UTC
Monitoring - Google's API error rate has dropped again and has been at normal levels for the past 10 minutes.

We'll continue to monitor and confirm this holds out.
Nov 12, 18:40 UTC
Investigating - We are currently investigating the cause of Google calendar sync degradation
Nov 12, 18:31 UTC
Nov 11, 2025

No incidents reported.

Nov 10, 2025

No incidents reported.

Nov 9, 2025

No incidents reported.

Nov 8, 2025

No incidents reported.

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