I am using google analytics for all my sites, and I recently made 2 new websites where I put the google analytics code just like I did with my other sites.

But the strange thing is that for new sites I don't see any traffic throughout the day but as the date is changed I can see the traffic details.

Means if it is 21st May today, I don't see anything in google analytics for all day but as the date changes and become 22nd I can see the stats for the date of 21st May.

For my other sites I don't have this issue.

Anybody knows what could be the reason of it?