How to get current time in FluentHeader?

[psvahn-rvvty]

I would like to use FluentUI in my App and use FluentLayout in MainLayout. I would like to add current date and time in the header, right after the App name text. I have a small component that works fine in other pages but not in the MainLayout. I have InteractiveServer mode set in Program.cs, but it does not seem to affect the header.

I cannot set @rendermode InteractiveServer in the main layout, then I get an error that @Body render fragment cannot be serialized...

I'm pretty new to Blazor and FluentUI, so I would be grateful for any help on this.