Why Are My Calendars Not Syncing?

Make sure that the date and time settings on your iPhone, iPad, iPod touch, Mac, or PC are correct. Make sure that you're signed in to iCloud with the same Apple ID on all of your devices. Then, check that you turned on Contacts, Calendars, and Reminders* in your iCloud settings. Check your Internet connection.

Why are my calendar events not syncing?

Open your phone's settings and choose “Apps” or “Apps & notifications.” Find “Apps” in your Android phone's Settings. Find Google Calendar in your massive list of apps and under “App Info,” select “Clear Data.” You'll then need to turn off your device then turn it back on again. Clear data from Google Calendar.

How do I sync calendars between devices?

Tap Settings > Mail, Contacts, Calendars. If the account you want to use for syncing calendars (iCloud, Exchange, Google, or CalDAV) is not already listed at the top, tap Add Account and follow the prompts to add it. Tap the account name and make sure Calendars is turned on for that account.