It seems to work as expected using the latest version of the Impala JDBC driver.  
Might you give that a try and see if it solves your issue?

create table t (pk int primary key, ts timestamp)
partition by hash(pk) partitions 2
stored as kudu
tblproperties('kudu.num_tablet_replicas' = '1');

*** Database product version: 2.9.0-cdh5.12.1
*** JDBC Driver version:
TimestampIn:  2017-11-04 22:30:00.0 - getTime(): 1509859800000
TimestampOut: 2017-11-04 22:30:00.0 - getTime(): 1509859800000

On 2017-12-18 04:49, Jeszy <[EMAIL PROTECTED]> wrote: