I think I fixed my issue. I decided to start over (saved my config.js, but wiped everything else), and noticed things seemed fine, except for one calendar. I changed the ordinal date as others have recommended to fix the issue with events earlier than 1970, and saw the issue come back. I changed the date back to 1970, and the issue went away. So ultimately I deleted all calendar items from before 1970 to fix my issue.

I am having a similar but yet different issue.
I noticed that one of my several calendars was showing activities one day early. I added new events for testing, and they show on the correct day, but the old events show a day off still.

The green events come from the same calendar. The test events show on the right date in MM, but you can see that the Daycare event shows on the wrong date. I tried the no end “fix”, but that didn’t fix things. I checked my Pi and the calendar timezones and locations, and they all match (US, EN, Chicago). Are the events cached and can the cache be cleared? Any other debugging options that I can be helped with?

Everything worked fine up until a day or two ago, and I’m not sure what changed.

Thank you in advance for the help.

I’m guessing this is related to the post I made as well:
https://forum.magicmirror.builders/topic/8975/some-calendar-icons-missing

The issue is what version of FontAwesome that comes integrated with the MagicMirror. You would have to pick an icon that is part of FontAwesome 4.7 to get it to work.

I have been trying to figure out why some of the icons I have picked from the FontAwesome site won’t work with my calendar. I believe I figured out that it is related to using FontAwesome 4.7. FontAwesome5 is out, but I don’t know the details about how it, as I’m really not a developer, just a tinkerer.
I wasn’t sure if this justified a bug, but it may be worth someone’s time to eventually look at updating FontAwesome versions.
Thanks

I should note this is on an RPi3 built in Oct2018, with I think MMv2.5.
Trying to use an icon such as cross or church did not work in the calendar. birthday-cake and calendar-check-o work fine.
I used Grep to look for birthday-cake and the reference hex value. I didn’t know how to modify the SVG file to add this icon. I found the FontAwesome4.7 download online and saw that these values were also not there. I also got a notification that FontAwesome5 is available upon trying to download 4.7.