Time flies when...

[Argtee]

Sleep

Minecraft.
I remember looking at the clock and see that it was about 1:30 in the afternoon, so I thought I'd start building my lava lighthouse.

Next thing I know, it's 5:30 and my parents are yelling at me to get off the computer and come eat dinner.

EDIT:

Minecraft.
Seriously I look out and it's winter, what happened to summer and autumn?

*High Five*

 

[Idlemessiah]

... when you're having rum!

And playing Total War games.
Or reading a good book. (Brilliant for killing long train journeys).
Or when the staff say the bar is closing in an hour

 

[.Ricks.]

A lot of things.

Playing an immersive game. Putting of studying for a test. Making out with someone you actually like. Skimming at the beach. Being at the beach. Generally having fun makes time fly.

 

[Riku'sTwilight]

Either when watching a film or tv programme, or when designing anything - that always shaves hours off my day.
Recently reading and writing (for leisure, not in an educational sense) take lots of time away from me

 

[Evilsanta]

When i am on TVtropes...Damn it that site has taken more hours from my life then anything.

 

[Brandon237]

A lot of things.

Playing an immersive game. Putting of studying for a test. Making out with someone you actually like. Skimming at the beach. Being at the beach. Generally having fun makes time fly.

You are so lucky to live near the beach. I suppose I can still make do with the first three though...

 

[IcyEvils]

Going on huge Wikipedia trains, it's just SO INFORMATIONAL!
Being with my girlfriend.
Watching comedy shows.
Going to the cinema or watching a movie at home.
Being with my girlfriend.
Hanging out with friends.
When I'm trying to enjoy time before an undesirable event, like going to mass.

 

[The Boy in the Hat]

Time flies when...
I'm living. It was my dad's birthday two weeks ago, but it seems like yesterday that I was watching him unwrap his presents.

 

[Deadlock Radium]

Playing Minecraft and/or hanging out with friends tends to make the time fly by really fast for me.

 

[micky]

When I play BF:BC2, or when I'm shooting (In real life), both of which I will be doing today. It's the end of the day before I know it.

im jealous of you, i haven't been shooting in a while.

 

[Sara Fontaine]

Time goes way too fast when I'm trying to sleep. I particularly hate it when it moves so fast it feels like I've just blinked and it's already 8 in the morning.