Give these a try using the Advanced filter:
Created today (host note being YYYY-MM-DD)
this.file.name == file.ctime.date()
Modified today (host note being YYYY-MM-DD)
this.file.name == file.mtime.date()
e.g.
```base
views:
- type: table
name: Table
filters:
and:
- this.file.name == file.ctime.date()
```