Extended-hours trading....

[Mendy]

What is extended-hours trading?
Brokerage's offers individual investors the opportunity to trade NASDAQ®, NYSE®, and AMEX® stocks during a continuous 12-hour trading session from 8 a.m. to 8 p.m. ET.

Day + Ext. (Day + Extended Hours) - Orders placed after 12:00:00 a.m. and before 7:59:59 p.m. ET and marked as Day + Ext. are valid between 8:00:00 a.m. and 8:00:00 p.m. ET that day. A Day + Ext. order placed between 8:00:00 p.m. and 11:59:59 p.m. ET is valid between 8:00:00 a.m. and 8:00:00 p.m. ET the next market day.

GTC + Ext. (GTC + Extended Hours) - A GTC + Ext. order works the same way as a GTC order, except it also includes extended hours trading sessions each day.

A.M. extended-hours orders (Ext. AM) can be placed at any time. The Ext. AM trading session is from 8:00 a.m. to 9:15 a.m. ET, Monday through Friday, excluding market holidays.

P.M. extended-hours orders (Ext. PM) can be placed at any time. The Ext. PM trading session hours are from 4:15 p.m. to 8 p.m. ET, Monday through Friday, excluding market holidays.