Time is a bit off?

im not sure if this is something to do with gamespot, or my own computer.

but for a while now, gamespot seems to be a couple minutes faster than my computer.

like ill post and my computer will say its like 1:15, while gamespot says i made the post at 1:17.

now ive its gotten to be 4 minutes faster.

for example:

has anyone else noticed this? or is it just my computer?

notice the time in the bottom right and then the time it says i posted: