FindTime is an Outlook Add-In that let's you conduct a poll to determine possible meeting times. Because it's integrated with Outlook, it knows the free/busy time of your participants and will present options with that in mind. Once consensus is reached you can easily book the meeting and have it...

The following link contains information from Microsoft about Outlook for Windows, iOS, Android, and on the web: https://support.office.com/en-us/article/outlook-training-8a5b816d-9052-4190-a5eb-494512343cca