Transferring Calandar from Outlook Classic to New Outlook?

flashpixx​ what type of email account do you have your calendar set up with in Classic? 

If POP or IMAP, (this computer only), you can try to export to a CSV and then try to import online to your email account (not sure what type of email you're using?)

Outlook.com will allow importing online and then show in New Outlook

Gmail/you have to import in the calendar in Gmail then it will show up in New Outlook. 

Some email types don't have a calendar at all connected, please let me know about this. 

Auto-sync on Microsoft Outlook calendars if you are using the same account in both versions.

Check on reminder notifications in your Outlook if you are seeing the same reminder, or if disabled by default in new installations.

You can transfer your calendar from Outlook Classic to New Outlook by syncing your account. Just sign in to the same Microsoft account in the new Outlook, and your calendar will automatically appear if it’s cloud-based (Exchange or Outlook.com). If your calendar is saved locally in a PST file, you may need to import it first in Classic Outlook and then sync it to the account. Microsoft has designed the new Outlook to automatically sync mail, contacts, and calendar once the account is added, so manual transfer is usually not needed unless data is stored offline.

If no one picks up this question here, you might be better served by posting this question in the Outlook Q&A Forum:

https://learn.microsoft.com/en-us/answers/tags/778/office-outlook
Click the "Ask a question" button at the top of the page.

This presents your question to a much larger audience and gets you access to the Outlook Subject Matter Support Specialist who monitor that forum.