No.
Neopian time is the same for all players and can't be changed.
No, it does not matter if you are logged on to Runescape or not, it takes the same amount of time for your membership to credit.
Around Twelve- the same time as the snowwager! :)
I believe you can, even at the same time, but if you do a message pops up saying that you're logged in from another location. You can't, however, have 2 accounts playing on the one server.
If you use two seperate accounts, you can. You cannot be logged onto the same account in two clients at the same time. Once you log into on client, and then the other, it will disconnect the first client.
You cannot reset the clock, Neopet Time is the same in every country.
Yes, it is actually possible. You can be on one account on two different computers at the same time, and you can also make contributions on both computers at the same time if you wish.
Each user of the same computer uses what we call CPU. The more CPU the slower your computer and Internet speed will be. You can have multiple users logged on at the same time which will slow your download and upload speed.
Two people can be logged on at the same time using the same password if they are using a shared account. However, this is not recommended for security reasons as it compromises the confidentiality and integrity of the account. It's safer for each person to have their own unique login credentials.
It's impossible to changed the NST on Neopets. NST, which stands for Neopets Standard Time is based on the time in which Neopets runs, which, I believe, is Pacific time. If it doesn't match the time in your time zone, don't fret. NST cannot be changed, and you must follow it to do dailes, such as the Snowager of the Tombola.
Microcomputer
yes you can use accounts on two computer at same time.