Hi Saroj,
Thank you very much. I enabled time on my layer and I set the appropriate Time Field, Field Format, and Time Zone. For the Time Zone I set it to UTC Zone. I live in Minnesota, and I had first set it to (UTC-06:00) Central Time (US & Canada). However, when I republished my Map Service, my times in my web map and in Collector converted and 6 hours were added. Therefore, I set the Time Zone to UTC, republished my map service and all my times now match in my web map, Collector, and Dashboard. Here is my screen shot:
Thanks again for your help!