DST ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Joel.Patterson@xxxxxxxxxxx Why did adding 1 second go to 1:59, and adding 2 seconds go to 3:00? SQL> / TO_CHAR(SYSDATE,'MM TO_CHAR(CURRENT_DAT ------------------- ------------------- 03/22/2007 13:34:24 03/22/2007 13:34:25 SQL> select to_timestamp_tz('20070311 01:59:58 US/EASTERN','YYYYMMDD HH24:MI:SS TZR') + TO_DSINTERVAL('0 00:00:01') from dual; 11-MAR-07 01.59.59.000000000 AM US/EASTERN SQL> select to_timestamp_tz('20070311 01:59:58 US/EASTERN','YYYYMMDD HH24:MI:SS TZR') + TO_DSINTERVAL('0 00:00:02') from dual; 11-MAR-07 03.00.00.000000000 AM US/EASTERN Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it.