Epoch time to time with timezone

I am reading register from controller.
Register is epoch time like “1341832802”.

I need to display that as time with local timezone.
I am using expression toDate({register path}*1000),
but I am getting time with 3 hours difference from my time zone(EET).
I changed time zone to local in project properties, but no luck.
Of course I can use dateArithmetics and (-3, “hour”) in summer time and (-2, “hour”) in winter time.
But is there a way to add timezone in expression or somehow else?

Problem solved.
Actually controller changes time to summer/winter mode itself.

dateArithmetic(toDate({SERVER/Register/Nr04_Comm_Reg1_Time_Seconds1970}*1000), -3, "hour")

works good.