Bell schedule

0. period07:10 – 07:55
1. period08:00 – 08:45
2. period08:50 – 09:35
20 minutes break
3. period09:55 – 10:40
4. period10:45 – 11:30
15 minutes break
5. period11:45 – 12:30
6. period12:35 – 13:20
7. period13:25 – 14:20
8. period14:25 : 15:10