Day and Time Sequences


The university uses standard time and day combinations to maximize utilization of university classroom space, and to allow students to schedule classes back to back and minimize scheduling conflicts. Conforming to Standard Day and Time Procedures is required when using either a general university classroom or a departmental room. This requirement should also apply to online-only courses.

Standard Time Sequences

A simple rule is to follow the standard Monday/Wednesday/Friday sequence for 50-minute classes and Tuesday/Thursday for 75-minute classes. The Time Sequence Table lists acceptable day and time combinations that must be adhered to by all departments, including four and five day combinations, when scheduling a class. The following points need to be adhered to:

Time Sequence

Monday/Wednesday/Friday - 50 minutes
Start End
7:45 am 8:35 am
8:50 am 9:40 am
9:55 am 10:45 am
11:00 am 11:50 am
12:05 pm 12:55 pm
1:10 pm 2:00 pm
2:15 pm 3:05 pm
3:20 pm 4:10 pm
4:25 pm 5:15 pm
Tuesday/Thursday - 75 minutes
Start End
8:00 am 9:15 am
9:30 am 10:45 am
11:00 am 12:15 pm
12:40 pm 1:55 pm
2:10 pm 3:25 pm
3:40 pm 4:55 pm
4:10 pm 5:25 pm

The time sequences are the times assigned to classes, so if a class is offered Monday/Wednesday/Friday at 8:00-8:50 am, that is the amount of time allowed for the class meeting. The lecture can not go beyond this 50-minute time period because it is then cutting into the passing time, which will cause problems for students who need to get to a 9:00 am class and will not allow the next class to start on time. Conforming to this procedure is required to allow enough time for classes to move in and out of rooms in a timely manner. There is a 15 minute passing time between classes. This time is to be shared by the faculty and students that meet back-to-back in the same room, allowing time for the first class to vacate the classroom and allowing the other class time to enter and faculty to set up.

To confirm the time of your class and passing time, refer to the Schedule of Classes, ADIN, or AccessPlus.

Non-Standard Time Sequences

Non-standard time sequences must be approved by the Office of the Registrar and Room Scheduling. If approved, due to inefficient use of limited classroom resources and complications for students trying to put a schedule together, these classes may be scheduled in less desirable facilities to minimize the loss of opportunities for classes that comply with the standard time and day combinations.

Summer Classes

For three-credit lecture/recitation courses meeting eight weeks, the standard 60 minute class period with a ten minute passing time provides for the required 300 minutes per week.

Typical summer class time sequence:

7:30 am to 8:30 am
8:40 am to 9:40 am
9:50 am to 10:50 am
11:00 am to 12:00 pm
12:10 pm to 1:10 pm
1:20 pm to 2:20 pm
2:30 pm to 3:30 pm
3:40 pm to 4:40 pm

Courses meeting for a three-hour block of time may use a non-standard start time if the course starts and ends in the morning, or starts and ends after noon. For questions, e-mail isusched@iastate.edu.

Finals / Night Exams

Contact your Departmental Office for location and the Office of the Registrar for time for final and night exams.