If I remember correctly the daylight saving option is in region tab of the ATA setup page, you need to change it.
Mine was something like 4/1/2 - 11/1/2 I changed it to something like 3/2/2 -11/1/2. Hope it helps.
Mine was something like 4/1/2 - 11/1/2 I changed it to something like 3/2/2 -11/1/2. Hope it helps.