diff --git a/integration_test_suite/jmx_example_application/src/main/java/io/prometheus/jmx/JmxExampleApplication.java b/integration_test_suite/jmx_example_application/src/main/java/io/prometheus/jmx/JmxExampleApplication.java
index d8917904..c7796cb3 100644
--- a/integration_test_suite/jmx_example_application/src/main/java/io/prometheus/jmx/JmxExampleApplication.java
+++ b/integration_test_suite/jmx_example_application/src/main/java/io/prometheus/jmx/JmxExampleApplication.java
@@ -17,8 +17,8 @@
 package io.prometheus.jmx;
 
 import java.lang.management.ManagementFactory;
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Locale;
 import javax.management.MBeanServer;
 import javax.management.ObjectName;
@@ -26,8 +26,8 @@
 /** Class to implement JmxExampleApplication */
 public class JmxExampleApplication {
 
-    private static final SimpleDateFormat SIMPLE_DATE_FORMAT =
-            new SimpleDateFormat("yyyy-MM-dd | HH:mm:ss.SSS", Locale.getDefault());
+    private static final DateTimeFormatter DATE_TIME_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault());
 
     /** Constructor */
     private JmxExampleApplication() {
@@ -61,7 +61,7 @@ public static void main(String[] args) throws Exception {
 
         System.out.printf(
                 "%s | %s | INFO | %s | %s%n",
-                SIMPLE_DATE_FORMAT.format(new Date()),
+                LocalDateTime.now().format(DATE_TIME_FORMATTER),
                 Thread.currentThread().getName(),
                 JmxExampleApplication.class.getName(),
                 "Running");
diff --git a/jmx_prometheus_javaagent/src/main/java/io/prometheus/jmx/JavaAgent.java b/jmx_prometheus_javaagent/src/main/java/io/prometheus/jmx/JavaAgent.java
index 2ebf5670..6edd2a77 100644
--- a/jmx_prometheus_javaagent/src/main/java/io/prometheus/jmx/JavaAgent.java
+++ b/jmx_prometheus_javaagent/src/main/java/io/prometheus/jmx/JavaAgent.java
@@ -26,15 +26,15 @@
 import java.io.File;
 import java.lang.instrument.Instrumentation;
 import java.net.InetAddress;
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Locale;
 
 /** Class to implement JavaAgent */
 public class JavaAgent {
 
-    private static final SimpleDateFormat SIMPLE_DATE_FORMAT =
-            new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault());
+    private static final DateTimeFormatter DATE_TIME_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault());
 
     private static final PrometheusRegistry DEFAULT_REGISTRY = PrometheusRegistry.defaultRegistry;
 
@@ -111,7 +111,7 @@ public static void premain(String agentArgument, Instrumentation instrumentation
     private static void info(String format, Object... objects) {
         System.out.printf(
                 "%s | %s | INFO | %s | %s%n",
-                SIMPLE_DATE_FORMAT.format(new Date()),
+                LocalDateTime.now().format(DATE_TIME_FORMATTER),
                 Thread.currentThread().getName(),
                 JavaAgent.class.getName(),
                 format(format, objects));
diff --git a/jmx_prometheus_standalone/src/main/java/io/prometheus/jmx/Standalone.java b/jmx_prometheus_standalone/src/main/java/io/prometheus/jmx/Standalone.java
index 3f2e0709..6d3226af 100644
--- a/jmx_prometheus_standalone/src/main/java/io/prometheus/jmx/Standalone.java
+++ b/jmx_prometheus_standalone/src/main/java/io/prometheus/jmx/Standalone.java
@@ -28,15 +28,15 @@
 import io.prometheus.metrics.model.registry.PrometheusRegistry;
 import java.io.File;
 import java.net.InetAddress;
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Locale;
 
 /** Class to implement Standalone */
 public class Standalone {
 
-    private static final SimpleDateFormat SIMPLE_DATE_FORMAT =
-            new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault());
+    private static final DateTimeFormatter DATE_TIME_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault());
 
     private static final PrometheusRegistry DEFAULT_REGISTRY = PrometheusRegistry.defaultRegistry;
 
@@ -98,7 +98,7 @@ public static void main(String[] args) throws Exception {
                                         PrometheusRegistry.defaultRegistry, file);
             }
 
-            info("Running ...", httpEnabled, openTelemetryEnabled);
+            info("Running ...");
 
             Thread.currentThread().join();
         } catch (ConfigurationException e) {
@@ -143,7 +143,7 @@ private static void close(AutoCloseable autoCloseable) {
     private static void info(String format, Object... objects) {
         System.out.printf(
                 "%s | %s | INFO | %s | %s%n",
-                SIMPLE_DATE_FORMAT.format(new Date()),
+                LocalDateTime.now().format(DATE_TIME_FORMATTER),
                 Thread.currentThread().getName(),
                 Standalone.class.getName(),
                 format(format, objects));