Hellooo?

Hey, so, I'm just wondering, does anyone know how to change the time on a blog? If you do message me on msp or comment on here. Thanks.
It's just the fact that My clock on my blog is either fast or slow O,,,,,O Cause when It was like 01:50 lastnight, it said it was like 7:34 or something O,O

Anywho, I need help on how to change it ;-;


-Jess