ISP:
Comcast

Type of Internet Connection:
Cable

Internet Connection Speed:
50 mbps

Date & Time:
11/24/13 12:00 PM PST

Frequency:
Always

Character Name:
Phaethuer Quinault

Race:
Miqo'te M

World:
Hyperion

Party or Solo:
Solo

NPC Name:
Storm Personnel Officer

Steps:
I have tested three times now, logging into the game and having over 17 hours remaining before the Grand Company Supple and Provisioning Missions timers were to reset according to the "Timers" window available in the main menu.
I proceeded to gather all of the items for the timer that I wished to turn in. Upon my return to the Grand Company the requested items had changed.
I opened up the Timers window again through the main menu and it still read 16:27 mins before they changed. Returning to the NPC confirmed that the requested items had changed.
The conclusion drawn is that the actual reset is occurring independently of the scheduled time of 05:00 AM PST and are instead resetting at 12:00 PM PST.