7:00 a.m. to 9:25 a.m. U.S. ET

Orders eligible for pre-market execution must be placed between 8:05 p.m. (previous trading day) and 9:25 a.m. ET.

4:05 p.m. to 8:00 p.m. U.S. ET

Orders eligible for after-hours execution must be placed between 4:05 p.m. and 8:00 p.m. ET.

13- or 24-hour continuous

Orders eligible for continuous execution during extended hours (7:00 a.m. to 8:00 p.m. U.S. ET) and extended + overnight hours (24 hours) can be placed at any time exclusively on thinkorswim^®.