Campus start and end times are listed below:
|Campus Level||Start Time||End Time|
|High Schools*||8:30 a.m.||4 p.m.|
|Middle Schools**||8:30 a.m.||4 p.m.|
|Intermediate Schools||7:45 a.m.||3:15 p.m.|
|Elementary Schools***||7:55 a.m.||3:25 p.m.|
|Early Learning Centers||8:10 a.m.||3:40 p.m.|
*Keller Collegiate Academy follows the same bell schedule as Keller ISD high schools.
**Indian Springs Middle School and Timberview Middle School follow a Middle School Bell Schedule despite the fact that they serve grades 5-8.
***Heritage Elementary School observes different hours from other elementary campuses. The HES school day begins at 7:45 a.m. and concludes at 3:45 p.m.