Julian>you should be able to come up with a test case Julian>against a reputable database (e.g. PostgreSQL
pgjdbc committer here :) There are timezone-related tests in https://github.com/pgjdbc/pgjdbc/blob/c633cc6cf5295bfbd5b6a79bb45dff863c5056f5/pgjdbc/src/test/java/org/postgresql/test/jdbc2/TimezoneTest.java and https://github.com/pgjdbc/pgjdbc/blob/c633cc6cf5295bfbd5b6a79bb45dff863c5056f5/pgjdbc/src/test/java/org/postgresql/test/jdbc42/GetObject310Test.java It might be fun to run the tests through Avatica. Vladimir, frankly speaking, I don't follow what do you mean by "Avatica assumes that the underlying engine operates on relative time" Could you please provide the exact API call sequence and the expected result? Vladimir