I think this is daytrader friendly suggestion. When you do a search on the TL, you can see the ending times on every player. Then again, I never had a problem of biding high for players I want, but can't be online, when they actually sell.
I am mentoring two divIV teams currently in Estonia. It takes me more time, to gather the money, to buy a capable player suitable for my team.I'm not saying it's a bad idea, as "window" searching might remove a lot of debris from the search results. Then again, I have bought players, while not being online and would urge them to do the same, if there is a player that is worth biding on. Searching specific "windows" might make you miss out on a great player, listed to end at a different time.
person with more ideal time for you...