diff --git a/main.go b/main.go
index ebb6772..b6eebd1 100644
--- a/main.go
+++ b/main.go
@@ -3,12 +3,23 @@ package main
 import (
 	"advent-20/solutions"
 	"fmt"
+	"time"
 )
 
 func main() {
-	fmt.Println("Day 01 part 1:\t", solutions.Day01Part01(false))
-	fmt.Println("Day 01 part 2:\t", solutions.Day01Part02(false))
+	runAndBenchmark("01", "1", false, solutions.Day01Part01)
+	runAndBenchmark("01", "2", false, solutions.Day01Part02)
 
-	fmt.Println("Day 02 part 1:\t", solutions.Day02Part01(false))
-	fmt.Println("Day 02 part 2:\t", solutions.Day02Part02(false))
+	runAndBenchmark("02", "1", false, solutions.Day01Part01)
+	runAndBenchmark("02", "2", false, solutions.Day01Part02)
+}
+
+type execute func(bool) int
+
+func runAndBenchmark(day, part string, isTest bool, fn execute) {
+	startMs := time.Now().UnixMicro()
+	computation := fn(isTest)
+	endMs := time.Now().UnixMicro()
+	duration := endMs - startMs
+	fmt.Printf("Day %s part %s:\t%10d\t%5d micros.\n", day, part, computation, duration)
 }