Does the duration of time changes?

I've been having this question for quite some time and I'm still puzzled. Maybe it's just me being silly but it seems like the duration of time varies. Am I not making sense?

There are times when an hour feels like an hour.
There are times when an hour feels like more than just an hour.
There are also times when an hour feels like just 30 minutes.

You must be thinking it's probably due to what I am doing. Fact is, I do the same work every day. Sometimes, time just ticks off and sometimes it seems to not tick at all... I used to think it's prolly due to the amount of rest I have but this week I've had enough sleep for all four days! Tuesday and Wednesday were like really really long days while Monday and today passes quite fast. :/

It's just me, right?

On a random note,,, I realise I've been updating my blog a lot lately. Especially this week... :/ Second for today and the fifth for this week! I'm mad. Must be the absence of Stewie ah...... ><

Necessary insert. xD
HAHAHAHAHAHA~ ♥
Woooooooooo~ Can't wait for tomorrow!!!!!!!!!!!!!!! ^^