Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Week | Date | Opponent | Result | Kickoff Time | Attendance |
| --- | --- | --- | --- | --- | --- |
| 1.0 | September 7, 2003 | Indianapolis Colts | L 9–6 | CBS 1:00pm | 73,358 |
| 2.0 | September 14, 2003 | at Baltimore Ravens | L 33–13 | CBS 1:00pm | 69,473 |
| 3.0 | September 21, 2003 | at San Francisco 49ers | W 13–12 | CBS 4:05pm | 67,412 |
| 4.0 | September 28, 2003 | Cincinnati Bengals | L 21–14 | CBS 1:00pm | 73,428 |
| 5.0 | October 5, 2003 | at Pittsburgh Steelers | W 33–13 | ESPN 8:30pm | 64,595 |
| 6.0 | October 12, 2003 | Oakland Raiders | W 13–7 | CBS 1:00pm | 73,318 |
| 7.0 | October 19, 2003 | San Diego Chargers | L 26–20 | CBS 1:00pm | 73,238 |
| 8.0 | October 26, 2003 | at New England Patriots | L 9–3 | CBS 1:00pm | 68,436 |
| 9.0 | Bye | Bye | Bye | Bye | Bye |
| 10.0 | November 9, 2003 | at Kansas City Chiefs | L 41–20 | CBS 1:00pm | 78,560 |
| 11.0 | November 16, 2003 | Arizona Cardinals | W 44–6 | FOX 1:00pm | 72,908 |
| 12.0 | November 23, 2003 | Pittsburgh Steelers | L 13–6 | CBS 1:00pm | 73,658 |
| 13.0 | November 30, 2003 | at Seattle Seahawks | L 34–7 | CBS 4:15pm | 64,680 |
| 14.0 | December 8, 2003 | St. Louis Rams | L 26–20 | ABC 9:00pm | 73,108 |
| 15.0 | December 14, 2003 | at Denver Broncos | L 23–20 | CBS 4:05pm | 75,358 |
| 16.0 | December 21, 2003 | Baltimore Ravens | L 35–0 | CBS 1:00pm | 72,548 |
| 17.0 | December 28, 2003 | at Cincinnati Bengals | W 22–14 | CBS 1:00pm | 65,362 |
Question:
What day did they play on week 4?
Answer:
September 28, 2003