If you want to restrict a View to display today's records,
- Click on Edit this application and select your View.
- Click on Set Criteria -> Restricted Records.
- Choose "Added Time" for the first drop down and "Today" for the second drop down.
- Click on Done to save the changes.
If you want to iterate the today's records via deluge, the criteria will be ,
- (Added_Time >= zoho.currentdate && Added_Time <= (zoho.currentdate + '0W:0D:23H:59M:59S'))