diff --git a/src/main/java/com/sample/controller/SampleController.java b/src/main/java/com/sample/controller/SampleController.java
index b92ff3a..768fd1c 100644
--- a/src/main/java/com/sample/controller/SampleController.java
+++ b/src/main/java/com/sample/controller/SampleController.java
@@ -1,9 +1,12 @@
 package com.sample.controller;
 
 import io.micrometer.core.instrument.Counter;
+import io.micrometer.core.instrument.Timer;
 import io.micrometer.prometheus.PrometheusConfig;
 import io.micrometer.prometheus.PrometheusMeterRegistry;
 import io.prometheus.client.exporter.common.TextFormat;
+import java.util.Random;
+import java.util.concurrent.TimeUnit;
 import lombok.Data;
 import lombok.Builder;
 import org.springframework.http.HttpHeaders;
@@ -17,30 +20,44 @@
 @RequestMapping("/sample")
 public class SampleController {
 
-    private final PrometheusMeterRegistry prometheusMeterRegistry;
-    private final Counter helloCounter;
+  private final PrometheusMeterRegistry prometheusMeterRegistry;
+  private final Counter helloCounter;
 
-    public SampleController() {
-        prometheusMeterRegistry= new PrometheusMeterRegistry(PrometheusConfig.DEFAULT);
-        helloCounter = prometheusMeterRegistry.counter("hoge.counter", "group", "A", "sub-group", "B");
-    }
+  public SampleController() {
+    prometheusMeterRegistry = new PrometheusMeterRegistry(PrometheusConfig.DEFAULT);
+    helloCounter = prometheusMeterRegistry.counter("hoge.counter", "group", "A", "sub-group", "B");
+  }
 
-    @GetMapping("/prometheus")
-    public ResponseEntity<String> prometheus() {
-        return ResponseEntity.ok()
-                .header(HttpHeaders.CONTENT_TYPE, TextFormat.CONTENT_TYPE_004)
-                .body(prometheusMeterRegistry.scrape());
-    }
+  @GetMapping("/prometheus")
+  public ResponseEntity<String> prometheus() {
+    return ResponseEntity.ok()
+        .header(HttpHeaders.CONTENT_TYPE, TextFormat.CONTENT_TYPE_004)
+        .body(prometheusMeterRegistry.scrape());
+  }
 
-    @GetMapping("/hello")
-    public SampleDto hello() {
-        helloCounter.increment();
-        return SampleDto.builder().msg("hello").build();
-    }
+  @GetMapping("/hello")
+  public SampleDto hello() {
+    helloCounter.increment();
+    Timer.builder("hoge.timer")
+        .tag("group", "A")
+        .publishPercentiles(0.5, 0.95, 0.99)
+        .register(prometheusMeterRegistry)
+        .record(() -> {
+          try {
+            Random rand = new Random();
+            int num = rand.nextInt(3);
+            TimeUnit.SECONDS.sleep(num + 1);
+          } catch (Exception e) {
+            throw new RuntimeException(e);
+          }
+        });
+    return SampleDto.builder().msg("hello").build();
+  }
 
-    @Builder
-    @Data
-    private static class SampleDto {
-        private String msg;
-    }
+  @Builder
+  @Data
+  private static class SampleDto {
+
+    private String msg;
+  }
 }