diff --git a/01/main.go b/01/main.go
index 709c15e..0258a18 100644
--- a/01/main.go
+++ b/01/main.go
@@ -5,11 +5,16 @@ import (
 	"fmt"
 	"os"
 	"strconv"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 // [...] they need you to find the two entries that sum to 2020 and then multiply those two numbers together.
diff --git a/02/main.go b/02/main.go
index 98ba910..068bd5f 100644
--- a/02/main.go
+++ b/02/main.go
@@ -6,12 +6,17 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"time"
 	"unicode"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 //To try to debug the problem, they have created a list (your puzzle input) of passwords (according to the corrupted database) and the corporate policy when that password was set.
diff --git a/03/main.go b/03/main.go
index 0dc1075..db8c071 100644
--- a/03/main.go
+++ b/03/main.go
@@ -5,11 +5,16 @@ import (
 	"fmt"
 	"os"
 	"strings"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 type slope struct {
diff --git a/04/main.go b/04/main.go
index 95fd414..7227e5f 100644
--- a/04/main.go
+++ b/04/main.go
@@ -6,11 +6,16 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 type passport struct {
diff --git a/05/main.go b/05/main.go
index f8e83fb..aba106f 100644
--- a/05/main.go
+++ b/05/main.go
@@ -5,11 +5,16 @@ import (
 	"fmt"
 	"os"
 	"sort"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 type boardingPass struct {
diff --git a/06/main.go b/06/main.go
index 70c4e86..e05d08c 100644
--- a/06/main.go
+++ b/06/main.go
@@ -5,11 +5,16 @@ import (
 	"fmt"
 	"os"
 	"strings"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 func union(s string) string {
diff --git a/07/main.go b/07/main.go
index cd33df0..5780c81 100644
--- a/07/main.go
+++ b/07/main.go
@@ -6,11 +6,16 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 // Bag is a bag that contains other bags
diff --git a/08/main.go b/08/main.go
index b79173c..733cf49 100644
--- a/08/main.go
+++ b/08/main.go
@@ -6,11 +6,16 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 type opCode struct {
diff --git a/09/main.go b/09/main.go
index d0ea84c..4ff6bb8 100644
--- a/09/main.go
+++ b/09/main.go
@@ -6,11 +6,16 @@ import (
 	"os"
 	"sort"
 	"strconv"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 func checkNotSum(t int, s []int) bool {
diff --git a/10/main.go b/10/main.go
index 5eb8196..22a7eb5 100644
--- a/10/main.go
+++ b/10/main.go
@@ -6,11 +6,16 @@ import (
 	"os"
 	"sort"
 	"strconv"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 // Find a chain that uses all of your adapters to connect the charging outlet to your device's built-in adapter
diff --git a/11/main.go b/11/main.go
index 2fb419b..4064a2f 100644
--- a/11/main.go
+++ b/11/main.go
@@ -4,11 +4,16 @@ import (
 	"bufio"
 	"fmt"
 	"os"
+	"time"
 )
 
 func main() {
+	start := time.Now()
 	partOne()
+	duration := time.Since(start)
 	partTwo()
+	duration2 := time.Since(start)
+	fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
 }
 
 type cell struct {