Is there time in space?

Ok, I guess the question I mean to ask isn't really *that* general. I don't really mean to get into a "if a tree falls in the forest and no one is around to hear it, does it make a sound?" kind of thing. (oh and YES. Yes it fucking does make a sound.)
My question surfaced when I was watching the last episode of Firefly a few days ago. In it, Mal Reynolds states at one point, "It's late; let's get some rest." HOW DID HE KNOW IT WAS LATE? This didn't really bother me while I was watching the show, but the question did come up. And it still doesn't bother me, really, but now I'm curious about the concept. Seriously, what constitutes as "late"?
Outside of their ship (when in transit) it *always* looks like this:

What time does that look like to you?
But they can have clocks that they set to a certain time! you say. Fine, yes, maybe.. I've never seen a clock anywhere on Serenity, but given this hypothetical future, that could be a way to make sure you sleep when it's "late", have breakfast in the "morning", and so forth... Even so, though, how do you pick the time? Say you're a crew similar to that of Serenity in this exact same future. You pretty much live inside a transport ship and you spend your time traversing space to different worlds in which you can attain and perform work gigs. There's no fucking way the time (and even the passing of time) will be the same on each world. Terraforming is a pretty cool feat of this future, but I don't think they were able to or cared to form a centralized system of time in which all planets and moons participate.
Okay, I'm starting to ramble a bit too much. My point is, how do you choose which time(zone) to abide by while floating through space when in reality space is your home? And can you imagine the awful amount of jetlag that you would get all the time? Or would you stop having an internal clock all together?
Tell me your thoughts and theories in the comments!

GONE: Future+Past in an Awesome Non-A-Christmas-Carol-y Way

(Seriously, I hate "A Christmas Carol". Something about those christmas ghosts has always freaked me out and made me want to puke. Especially the Disney film adaptation with Mickey Mouse. God, that movie...
Anyway. This is about something else. And don't worry, it contains NO SPOILERS. That's right, kids. Anyone can read. Also, I hate spoilers, so if I post something with spoilers some day, I will announce it in big bold letters; don't you worry. Now for my post.)

EXCEPT I HAVE NO POST. Why? Because when I tried to add a caption to this actually quite unnecessary picture over here ------------------------------------------------->
Blogger decided that everything that was anywhere below the picture (not just what I was currently writing directly beneath the picture) was the caption, so that when I realized I didn't like the idea of a caption and went to remove it, it deleted MY ENTIRE POST except for that little intro thing in which I talk about how I hate A Christmas Carol (couldn't *that* have been deleted instead?) And Blogger automatically saves every second ANYTHING happens (which seems to kind of defeat the purpose, since usually you want an earlier draft because you fucked something up and want to go back to how it was before) so.. my post raving about Firefly was gone forever and is now being replaced by one in which I rant about the inefficiency of Blogger autosave. Maybe it's for the best.. There is plenty of Firefly praise online as it is (though it still deserves even more. like enough for Fox to realize their mistake and hire the best scientists in the world to finally invent a time machine and go back and *never cancel Firefly in the first place*) but.. I guess that would hardly be a way of offering something different on here. Whatever. I am ticked off. Go watch Firefly if you haven't already so that you can get an idea of what I was writing in this post before it was deleted by the demonic internet forces. Who knows. Maybe I'll watch a couple more episodes and rewrite the damn thing.

And yes. I'm keeping that freaking picture there just cus of all the trouble and pain it caused. Even though now I realize it has a white background and it looks CRAPPY.