I personally use 24 hour time, and I try to have my devices set to that, although I'm normally fine with using 12 hour time, and I can switch between the two fairly easily. Kind of like Vouk, I'm pretty certain that I switch between the two without much thought, sometimes. Just because being in the USA made me grow up with 12 hour, though I generally do a quick conversion of 24 to 12 hour anyway.
I like all biomes equally in an 'idea' sense, I guess, although I generally tend to prefer cooler weather in rocky, uneven areas with a fair amount of water and flora. I don't really know where that would go. As long as there aren't mosquitoes and ticks and such. I hate those. Basically if it's kind of cool and has grass, trees, rocks, and water, I'm happy. More temperate areas, I guess. Although I'm fairly fine with a lot of stuff, I would say deserts and tundras are too harsh for me. That probably makes very little sense.
Hei thar mortals, Sapp, Savvy. I found this thing, so I'll go ahead and mention something about the mobile form of this site again (not that I said anything, but Lazulus did). I don't know whether or not this is only for the theme I have right now, although in the chat, mobile version, everything is kind of squished and the messages are basically partially covered by the time thing, and also squished together. I don't know if anything could be done, just pointing this out. I apologize for any mistakes in grammar or spelling. I considering spelling 'spelling' wrong and have improper grammar in that last sentence, but decided against it. I'm on mobile by the way, if you want specifics, Savvy, PM me, please. If you even see this.