No, you would be day trading if you bought at 12 noon and sold at 3pm the same day.
If you hold the stock overnight it is not considered day trading. You will have to wait until the proceeds of the fund are settled before you could use that money to trade again.
If you have margin enabled on your account, even if you don't use it, the proceeds will be available immediately with most retail brokers. So sign up for margin. You're not obligated to use it but there are many advantages.
What if i put in 3000$ and only use 800$ ona margin account. Will that be ok as long as i pay them. I mostly just want to be able to buy and sell stocks immediately instead of wanting to wait for the cash to settle.