How to add days and time for instructor schedule

Question

Problem

I need to get schedule for every instructor weekly or daily .

And which time it give course for training center .

 

And what course it will give .

 

Example

 

Instructor martin give course c# in Monday and Saturday for period 12 pm - 03 pm and

 

SQL in Sunday and Wednesday for

 

period 12 pm - 03 pm .

 

Details

 

So that i designed the following tables :

 

Instructors table (InstractorID,InstractorName)

 

Courses table (CourseID,CourseName)

 

Instructors_courses (instcourseID,InstractorID,CourseID)

 

And relation between instructors table and Courses table many to many so that i do

 

another table is Instructors_Courses table .

 

My questions are

 

1- How to represent days and time for every course added

 

Can i add table for time and table for days and make relation with Instructors_courses

 

table by adding day id and time id (one to many)

 

OR do it programming from user interface .

 

2- course start date and course end date these two fields how to represent in table

 

Instructors_courses table .

 

i can added but it will repeated with every course are this correct or what .