Calendar Isn't Syncing with Alexa

Calendar event is missing or the event time is incorrect.

Verify that the correct calendar is linked in the Alexa app.
Sign into your calendar account and check that the event is on your calendar.
If the event time is incorrect: check that your calendar account and Alexa device are set to the correct time zones. Use the Alexa app to check the time zone for your device.
For iCloud calendars: make sure that your device's calendar app is synced to iCloud.