Day order vs Good-Til-Cancelled (GTC) /Good-Til-Date (GTD) order
Day orders are good for the current trading session only and are automatically cancelled if not filled by the end of the trading session.
Good-til-cancelled (GTC) orders remain in effect for 90 calendar days or until cancelled by the customer or executed by the broker.
Good-til-date (GTD) orders remain in effect for specified date(up to 90 calendar days)3-months or until cancelled by the customer or executed by the broker.