ISP: Comcast
Type of Internet Connection: Broadband Cable
Internet Connection Speed: 12Mbps
Date & Time: starting around 7.21.12
Frequency: Always
Character Name: Ganji Maru
Race: Lalafell
World: Excalibur
Class/Level: DoW/M
Area and Coordinates: Any Instance (Skirmish/CC/AV) for timers, everywhere on skill cool downs.
Party or Solo: Both
NPC Name: None
Monster Name: N/A
In-Game Time: N/A
Steps:
To be a tad more specific:

Skill Cool Downs - When the timer reaches 0:00, an additional 5-15sec is added onto the cool down. After this runs, another 1-2 sec cool down commences. This makes for a total of 3 cool downs. I also appear to have lingering buff/de-buff icons in my status bar. The buff/de-buff will wear off, but the icon will flash 0:00 for various times before finally fading.

Timers - When inside of a timed instance, the timer for time remaining counts down normally. Somehow, however, it seem to get off sync with the actual time remaining, and will run out anywhere from 5-10 min early. I still receive the "system" message telling me the correct amount of time remaining, but the countdown timer always runs out early.