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You can as long as they have a Microsoft account. Any person from an institution that is using O365 will have a Microsoft account. Additionally, even personal Microsoft accounts can be invited. You can scope their access as appropriate from the subscription as a whole even down to the individual resource level.

Learning

What training options are there to learn more about Azure?

Microsoft offers a free online learning path for Azure Fundamentals. In addition to that, within the Microsoft Learn training options, there are currently 316 related to "Azure".

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TriviaVirtual Machines

How to say Azure, Microsoft's Cloud

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PlatformWhat are the recommended settings for synchronizing the system clock?

https://confluence.cornell.edu/x/GDeJFgImages from the Azure Marketplace should include default configurations for system clock management.  These range from using an emulated real-time-clock within the guest or reaching out to public network time servers around the world.

 In cases where you have configured restrictive Network Security Groups (NSG) that limit out-bound traffic, you should confirm that outbound probes to NTP servers are permitted.  Typically, this traffic operates on UDP port 123.  No special in-bound are required, since NSGs at Azure are stateful.

Additional details may be found in Microsoft's published guidelines for clock synchronization when running Linux platforms or Windows platforms in Azure.