However, you don’t need to sync iCloud with Office 365 Exchange or mailboxes.

So the answer is yes, Office 365 will work with iCloud. Many users asked this question if iCloud is supported in Office 365. In this blog, you will get to know about two methods to add the iCloud calendar to Outlook. Thankfully, there are some smart ways to sync an iCloud calendar in Outlook. However, if you want to add iCloud calendar to Outlook to make it sharable via Outlook or just for keeping track of your schedule, you need to add the calendar to Outlook. A lot of users tend to use the iCloud calendar on their iPhone or Mac to keep things organized.