diff --git a/base/rico-core/src/main/java/dev/rico/internal/core/context/ContextConstants.java b/base/rico-core/src/main/java/dev/rico/internal/core/context/ContextConstants.java
index dc2d3ea2..8f3d82f8 100644
--- a/base/rico-core/src/main/java/dev/rico/internal/core/context/ContextConstants.java
+++ b/base/rico-core/src/main/java/dev/rico/internal/core/context/ContextConstants.java
@@ -4,6 +4,12 @@ public interface ContextConstants {
 
     String APPLICATION_NAME_CONTEXT = "application.name";
 
+    String APPLICATION_START_TIME_CONTEXT = "application.startTime";
+
+    String APPLICATION_START_LOCALE_CONTEXT = "application.startLocale";
+
+    String APPLICATION_SYSTEM_TIMEZONE_CONTEXT = "application.systemTimezone";
+    
     String PLATFORM_VERSION_CONTEXT = "rico.version";
 
     String JAVA_VERSION_CONTEXT = "java.version";
diff --git a/base/rico-core/src/main/java/dev/rico/internal/core/context/RicoApplicationContextImpl.java b/base/rico-core/src/main/java/dev/rico/internal/core/context/RicoApplicationContextImpl.java
index ff7572b9..138c56a2 100644
--- a/base/rico-core/src/main/java/dev/rico/internal/core/context/RicoApplicationContextImpl.java
+++ b/base/rico-core/src/main/java/dev/rico/internal/core/context/RicoApplicationContextImpl.java
@@ -24,13 +24,18 @@
 import org.slf4j.LoggerFactory;
 
 import java.net.InetAddress;
+import java.time.ZoneId;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Optional;
 import java.util.concurrent.ConcurrentHashMap;
 
 import static dev.rico.internal.core.context.ContextConstants.APPLICATION_NAME_CONTEXT;
+import static dev.rico.internal.core.context.ContextConstants.APPLICATION_START_LOCALE_CONTEXT;
+import static dev.rico.internal.core.context.ContextConstants.APPLICATION_START_TIME_CONTEXT;
+import static dev.rico.internal.core.context.ContextConstants.APPLICATION_SYSTEM_TIMEZONE_CONTEXT;
 import static dev.rico.internal.core.context.ContextConstants.CANONICAL_HOST_NAME_CONTEXT;
 import static dev.rico.internal.core.context.ContextConstants.HOST_ADDRESS_CONTEXT;
 import static dev.rico.internal.core.context.ContextConstants.HOST_NAME_CONTEXT;
@@ -55,9 +60,10 @@ public class RicoApplicationContextImpl implements RicoApplicationContext {
     RicoApplicationContextImpl() {
         setGlobalAttribute(APPLICATION_NAME_CONTEXT, UNNAMED_APPLICATION);
         setGlobalAttribute(PLATFORM_VERSION_CONTEXT, PlatformVersion.getVersion());
-
+        setGlobalAttribute(APPLICATION_START_TIME_CONTEXT, System.currentTimeMillis() + "");
+        setGlobalAttribute(APPLICATION_START_LOCALE_CONTEXT, Locale.getDefault() + "");
+        setGlobalAttribute(APPLICATION_SYSTEM_TIMEZONE_CONTEXT, ZoneId.systemDefault().getId());
         setGlobalAttribute(OS_CONTEXT, OperationSystem.getLocalSystem().getShortName());
-
         setGlobalAttribute(JAVA_VERSION_CONTEXT, System.getProperty(JAVA_VERSION_SYSTEM_PROPERTY));
         setGlobalAttribute(JAVA_VENDOR_CONTEXT, System.getProperty(JAVA_VENDOR_SYSTEM_PROPERTY));
 
diff --git a/base/rico-core/src/test/java/dev/rico/internal/core/context/RicoApplicationContextImplTests.java b/base/rico-core/src/test/java/dev/rico/internal/core/context/RicoApplicationContextImplTests.java
index d28bf6dc..0bee25a2 100644
--- a/base/rico-core/src/test/java/dev/rico/internal/core/context/RicoApplicationContextImplTests.java
+++ b/base/rico-core/src/test/java/dev/rico/internal/core/context/RicoApplicationContextImplTests.java
@@ -23,8 +23,12 @@
 
 import java.util.Map;
 import java.util.Optional;
+import java.util.stream.Stream;
 
 import static dev.rico.internal.core.context.ContextConstants.APPLICATION_NAME_CONTEXT;
+import static dev.rico.internal.core.context.ContextConstants.APPLICATION_START_LOCALE_CONTEXT;
+import static dev.rico.internal.core.context.ContextConstants.APPLICATION_START_TIME_CONTEXT;
+import static dev.rico.internal.core.context.ContextConstants.APPLICATION_SYSTEM_TIMEZONE_CONTEXT;
 import static dev.rico.internal.core.context.ContextConstants.CANONICAL_HOST_NAME_CONTEXT;
 import static dev.rico.internal.core.context.ContextConstants.HOST_ADDRESS_CONTEXT;
 import static dev.rico.internal.core.context.ContextConstants.HOST_NAME_CONTEXT;
@@ -38,7 +42,9 @@
 
 public class RicoApplicationContextImplTests {
 
-    private static final int INITIAL_SIZE = 8;
+    private static final String[] INITIAL_GLOBAL_ATTRIBUTES = {HOST_NAME_CONTEXT, PLATFORM_VERSION_CONTEXT, CANONICAL_HOST_NAME_CONTEXT,
+            HOST_ADDRESS_CONTEXT, APPLICATION_NAME_CONTEXT, JAVA_VERSION_CONTEXT, JAVA_VENDOR_CONTEXT,
+            OS_CONTEXT, APPLICATION_START_TIME_CONTEXT, APPLICATION_START_LOCALE_CONTEXT, APPLICATION_SYSTEM_TIMEZONE_CONTEXT};
 
     private static final String key_1 = "KEY-1";
     private static final String key_2 = "KEY-2";
@@ -56,34 +62,12 @@ public void setup() {
     public void testInitialState() {
         assertEquals(manager.getThreadLocalAttributes().size(), 0);
 
-        assertEquals(manager.getGlobalAttributes().size(), INITIAL_SIZE);
-        assertNameExists(manager.getGlobalAttributes(), HOST_NAME_CONTEXT);
-        assertNameExists(manager.getGlobalAttributes(), PLATFORM_VERSION_CONTEXT);
-        assertNameExists(manager.getGlobalAttributes(), CANONICAL_HOST_NAME_CONTEXT);
-        assertNameExists(manager.getGlobalAttributes(), HOST_ADDRESS_CONTEXT);
-        assertNameExists(manager.getGlobalAttributes(), APPLICATION_NAME_CONTEXT);
-        assertNameExists(manager.getGlobalAttributes(), JAVA_VERSION_CONTEXT);
-        assertNameExists(manager.getGlobalAttributes(), JAVA_VENDOR_CONTEXT);
-        assertNameExists(manager.getGlobalAttributes(), OS_CONTEXT);
-
-        assertEquals(manager.getAttributes().size(), INITIAL_SIZE);
-        assertNameExists(manager.getAttributes(), HOST_NAME_CONTEXT);
-        assertNameExists(manager.getAttributes(), PLATFORM_VERSION_CONTEXT);
-        assertNameExists(manager.getAttributes(), CANONICAL_HOST_NAME_CONTEXT);
-        assertNameExists(manager.getAttributes(), HOST_ADDRESS_CONTEXT);
-        assertNameExists(manager.getAttributes(), APPLICATION_NAME_CONTEXT);
-        assertNameExists(manager.getAttributes(), JAVA_VERSION_CONTEXT);
-        assertNameExists(manager.getAttributes(), JAVA_VENDOR_CONTEXT);
-        assertNameExists(manager.getAttributes(), OS_CONTEXT);
-
-        assertTrue(manager.getAttribute(HOST_NAME_CONTEXT).isPresent());
-        assertTrue(manager.getAttribute(PLATFORM_VERSION_CONTEXT).isPresent());
-        assertTrue(manager.getAttribute(CANONICAL_HOST_NAME_CONTEXT).isPresent());
-        assertTrue(manager.getAttribute(HOST_ADDRESS_CONTEXT).isPresent());
-        assertTrue(manager.getAttribute(APPLICATION_NAME_CONTEXT).isPresent());
-        assertTrue(manager.getAttribute(JAVA_VERSION_CONTEXT).isPresent());
-        assertTrue(manager.getAttribute(JAVA_VENDOR_CONTEXT).isPresent());
-        assertTrue(manager.getAttribute(OS_CONTEXT).isPresent());
+        assertEquals(manager.getGlobalAttributes().size(), INITIAL_GLOBAL_ATTRIBUTES.length);
+        assertEquals(manager.getAttributes().size(), INITIAL_GLOBAL_ATTRIBUTES.length);
+
+        Stream.of(INITIAL_GLOBAL_ATTRIBUTES).forEach(n -> assertNameExists(manager.getGlobalAttributes(), n));
+        Stream.of(INITIAL_GLOBAL_ATTRIBUTES).forEach(n -> assertNameExists(manager.getAttributes(), n));
+        Stream.of(INITIAL_GLOBAL_ATTRIBUTES).forEach(n -> assertTrue(manager.getAttribute(n).isPresent()));
     }
 
     @Test
diff --git a/metrics/rico-metrics-server/src/main/java/dev/rico/internal/metrics/server/servlet/RequestMetricsFilter.java b/metrics/rico-metrics-server/src/main/java/dev/rico/internal/metrics/server/servlet/RequestMetricsFilter.java
index 99faf912..4a1a47c2 100644
--- a/metrics/rico-metrics-server/src/main/java/dev/rico/internal/metrics/server/servlet/RequestMetricsFilter.java
+++ b/metrics/rico-metrics-server/src/main/java/dev/rico/internal/metrics/server/servlet/RequestMetricsFilter.java
@@ -52,10 +52,10 @@ public void doFilter(final ServletRequest request, final ServletResponse respons
             final StringPair contextPathTag = ContextServerUtil.createContextPathTag((HttpServletRequest) request);
             final StringPair portTag = ContextServerUtil.createPortTag((HttpServletRequest) request);
             MetricsImpl.getInstance()
-                    .getOrCreateTimer(HTTP_REQUESTS_METRIC_NAME, contextPathTag, uriTag, methodTag, portTag)
+                    .getOrCreateTimer(HTTP_REQUEST_TIME_METRIC_NAME, contextPathTag, uriTag, methodTag, portTag)
                     .record(timeInMs, TimeUnit.MILLISECONDS);
             MetricsImpl.getInstance()
-                    .getOrCreateCounter(HTTP_REQUEST_TIME_METRIC_NAME, contextPathTag, uriTag, methodTag, portTag)
+                    .getOrCreateCounter(HTTP_REQUESTS_METRIC_NAME, contextPathTag, uriTag, methodTag, portTag)
                     .increment();
         }
     }