Now, forgive me if this has been suggested before, or if it seems unreasonable to you lot; but this is, after all, my first post here.
Anyhow, the suggestion I have is that the "Time Left" part of the auctions within the AH be changed. At first, you might be thinking "Why? What's wrong with it as is?". The main issue I see is that the later ranges (Long, and Very Long) are too wide. If you're browsing through and decide to bid on something with a time left of Long, it could end at any time between 4 hours and a massive 24 hours. That's an incredible 20 hour difference!
This might not seem like much of an issue for those players that can play almost all day long, but what about those that play in short sessions when they can? Those that check in to check for any updates just before they go to sleep? (those guys exist, right?).
Differences like 20 hours are too significant to just ignore.
Now, what I suggest is to make it more accurate. Not pin-point accuracy, cause that'll just stuff everything up. Very short, Short, and Medium are fine, but Long and Very Long ought to broken up into, say, 3 hour chunks. Doing so would help those stuck in restricted time frames to determine whether they can bid or not.
Let's take a scenario, shall we? You're bored of an afternoon, so you hop on and give yourself a solid 2 hours play time on SK. After After you've burned through your ME, you decide to go on the prowl for a certain item (doesn't matter what); so you head over to AH to get bidding. You find what you're after, and it's on for the elusive "Long". Now, you know this could be on for 4-24 hours, and you also know you'll be back in, let's say, 6 hours, to play again. So, you figure you'll risk it, bid, and log off. 6 hours later, you're on again, you've got mail saying you were outbid (which is fair enough), so you head back to AH to bid again, just to find the auction has ended! That "Long" was in the 4-6 hour range, not the massive 6-24. You're disappointed, you search again, and it's either not there, or it's overpriced.
What can you do?.. Wait. Oh, joy. It can become a long, painful process, and the lack of accuracy in Time Left can just make it even worse. Break it up a bit. Albeit, Very Long could stay, but I believe Long definitely needs to be broken up.
Tl;dr: Shorten the "Long" time left in AH into smaller time scale chunks, such as 3 hours.
Why not actual accurate time? It's just to prevent bid "sniping"? And I guess your suggestion sounds alright.