Solved Time is wrong on emails

I just got my hard drive back. I bought the computer in Sept. and the HD went. So it had to go to California. When I got the computer back the time was California time. I clicked on the time in the right hand corner and changed it to Eastern Standard time. It is still accurate in the right hand corner but people are saying my emails times are all wrong. They are receiving them before I've written them. And... to increase the mystery everyone's emails are coming to me with the wrong times. What could be wrong? Is it possible California time is still active somewhere else on the computer?

I'm using Outlook Mail. I went to my mail on roadrunner and the times are accurate so the problem is somewhere on my computer.

I changed the time and thought I'd set the time zone but evidently I didn't. I reset it to Eastern Standard and checked Daylight savings and the time on emails is accurate. Hope it's fixed for good.