June 18, 2019 – Google calendar seems to be giving a “404 Not Found” error for everyone logged in. This is an ongoing outage and news about what is going on is scarce currently. We just wanted to alert our users that it is not a problem on your computer, phone, or other device – it is a Google issue.
One news story we have found can be seen here: https://www.independent.co.uk/life-style/gadgets-and-tech/news/google-calendar-down-not-working-loading-error-404-outage-a8963851.html
Update – 10:25am – https://mashable.com/article/google-calendar-is-down/
Update – 10:45am – They seem to be restoring services. We can reach a calendar page now, but it is unable to load events. Our understanding is that service restoration will vary by user/region.
Another article can be found here: https://www.theverge.com/2019/6/18/18683625/google-calendar-down-worldwide-outage-404-error
Please use the articles above for further updates. We will not be following this any longer as it doesn’t directly impact our services.