The calendar nodes I made in other workspaces doesn't have the default tags. How do I make them?

Calendar nodes don't need the day/week/month/year supertags to work, so they come by default without them. It's only necessary to add supertags if you want to use templates for gathering tasks or doing reviews for that time granularity.

To add default tags, go to the node options menu and you should see an option to "Create default day/week/month/year tag". Once it's created, you can rename and customize it like any other supertag.

You can see all the tags you've created for your day/week/month/year nodes by going to Settings > Journaling

Advanced config: How to set up calendar node tags based on specific intervals

For more detail, check out the documentation on the Dates and Calendar nodes page.