diff --git a/Section4/constants/main.go b/Section4/constants/main.go
new file mode 100644
index 0000000..daf7302
--- /dev/null
+++ b/Section4/constants/main.go
@@ -0,0 +1,50 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	const days int = 7
+
+	var i int
+	fmt.Println(i)
+
+	const pi float64 = 3.14
+	const secondsInHours = 3600
+
+	duration := 234 //hours
+	fmt.Printf("Duration in seconds: %v\n", duration*secondsInHours)
+
+	x, y := 5, 1
+	fmt.Println(x / y)
+
+	const a = 5
+	const b = 1
+	fmt.Println(a / b)
+
+	const n, m int = 4, 5
+	const n1, m1 = 6, 7
+
+	const (
+		min1 = -500
+		min2
+		min3
+	)
+	fmt.Println(min1, min2, min3)
+
+	//Constant rules
+	//1. you can not change a constant
+	const temp int = 100
+	//temp = 50
+
+	//2. You can not initiate a constant at run time
+	// const power = math.Pow(2, 3)
+
+	//3. You can not use a variable to initiate a constant
+	//t := 5
+	//const tc = t
+
+	//4.
+
+}