Hi Every One, I have a problem with SLA, when i am changing the Times zone to UTC, Can any once give me the solution for this. Normaly my Time zone Asia/Kollata. with this the SLA are working fine. according office hour only. when i am changing to UTC time zone, The SLA is taking non-office hours also. for example :- 9:00 AM to 6:00PM my office hours on *core::time* according to this timings i set SLA, If any user is raise a new ticket at 8:00PM -- this ticket SLA should start from next day 9:00AM to SLA period. The above example is SLA working in Asia/Kollata Time zone. When i changed to UTC Time Zone my OTRS server system and OTRS --> sysconfig-->Framework-->core::time-->Time zone user -->YES. after this changes the customer can Login any country the Date & Time takes from there local system.--- this is fine. but SLA is calulacating the non-office hours For example: SLA is 4 hours. If any customer is raise a new ticket at 7:00PM -- it showing Solution time is 23:00PM. Can any once give me the solution for this. Regards, Ramana