Parents in the East Central School District have been sent a letter from Superintendent Gary Patterson notifying them class days will be extended by up to 25 minutes next year.
However, he said only the high school would not be affected by the changes.
Patterson, who would not comment on camera, wrote, "The length of the instructional day for our campuses has not changed much in decades, while the amount of mandated curriculum has seemingly increased ten-fold."
He said in addition, preparation state-mandated testing requires more time, especially in the areas of math and writing.
Patterson said, "We've struggled with time constraints for years."
He said the district also wants uniformity in its schedules for elementary, intermediate and middle schools.
He said students get out from some elementary and intermediate schools at times varying up to 30 minutes.
In his letter, Patterson said the time change will be as much as 25 minutes.
Although still subject to change, give or take five minutes, Patterson said next year elementary classes will go from 7:45 a.m.-3:35 p.m., intermediate schools from 7:45 a.m.-3:40 p.m., and middle schools from 7:50 a.m.-3:50 p.m.
A district spokesperson said they also have to factor in bus transportation and parents with students at different campuses.
Otherwise, Northside ISD is not considering similar changes, according to its spokeswoman.
An SAISD spokeswoman said the district is aware of the issue, but it has not presented to its school board.