Tomball High School — Bell Schedules
| | First Bell | Tardy Bell | Dismissal Bell | Operational Minutes |
| Regular Hours | 6:58 a.m. | 7:20 a.m. | 2:38 p.m. | 460 |
School Day Schedule
| Regular School Day |
7:20 AM |
2:38 PM |
438 min |
| Early Release |
7:20 AM |
11:35 AM |
255 min |
4 Lunches Bell Schedule
| 1st period |
7:20 AM |
8:07 AM |
47 min |
| 2nd period |
8:13 AM |
9:03 AM |
50 min |
| 3rd period |
9:09 AM |
9:56 AM |
47 min |
| 4th period |
10:02 AM |
10:49 AM |
47 min |
| 5th period |
10:49 AM |
12:49 PM |
120 min |
| "A" lunch |
10:49 AM |
11:19 AM |
30 min |
| "B" lunch |
11:19 AM |
11:49 AM |
30 min |
| "C" lunch |
11:49 AM |
12:19 PM |
30 min |
| "D" lunch |
12:19 PM |
12:49 PM |
30 min |
| 6th period |
12:55 PM |
1:42 PM |
47 min |
| 7th period |
1:48 PM |
2:38 PM |
50 min |
Tomball High School - 30330 Quinn Road, Tomball, TX 77375 - Phone: (281) 357-3220 - Fax: (281) 357-3258