Wrong time

Hello, time on my pi2 with OSMC got offset of about 2/4/12 hours, I have to restart several time to get correct time, timezone changing doesnt help because the same offset is kept on all timezones.

Make sure that your network is not blocking NTP traffic.
Make sure that your timezone is configured correctly in Kodi

Thanks for your answer, I opened port 123 both upd and tcp, I will report afterwards if it helps.
There is my log (ntpq and syslog)