Your server’s clock is probably not set correctly. A future version of Jetpack will probably work around this problem. In the meantime, setting your server’s clock to the correct time should fix the issue.
I changed my hosting to another company, now it’s working fine. But I am not seeing my full summery of the stats at dashboard. e.g: “Top Posts” are empty/missing. But in detail stat it’s fine. I have 1625 views right now.