Stored Procedure return datetime in utc like:

In SSRS report I formated date with mask "dd.MM.yyyy hh:mm:ss". But time was change

I think this happens becouse ssrs convert date from dd/MM/yyyy hh:mm:ss PM(AM) format. How can I return time from sp normaly?
YYYY-MM-DD HH:mm:ss.fffbecause it's unambiguous - Panagiotis Kanavos