diff --git a/src/main/java/stirling/software/SPDF/config/anonymus/session/AnonymusSessionService.java b/src/main/java/stirling/software/SPDF/config/anonymus/session/AnonymusSessionService.java
index 42584343..c5b8d907 100644
--- a/src/main/java/stirling/software/SPDF/config/anonymus/session/AnonymusSessionService.java
+++ b/src/main/java/stirling/software/SPDF/config/anonymus/session/AnonymusSessionService.java
@@ -1,9 +1,14 @@
 package stirling.software.SPDF.config.anonymus.session;
 
+import java.time.Duration;
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 
@@ -15,15 +20,28 @@ public class AnonymusSessionService {
 
     @Autowired private AnonymusSessionRegistry sessionRegistry;
 
+    @Value("${server.servlet.session.timeout:120s}") // TODO: Change to 30m
+    private Duration defaultMaxInactiveInterval;
+
     @Scheduled(cron = "0 0/1 * * * ?")
     public void expireSessions() {
+        Instant now = Instant.now();
         List<AnonymusSessionInfo> allNonExpiredSessions =
                 new ArrayList<>(sessionRegistry.getAllNonExpiredSessions());
-        if (allNonExpiredSessions.isEmpty()) {
-            log.info("Keine nicht abgelaufenen Sessions gefunden.");
-            return;
-        } else {
-            log.info("Es gibt {} nicht abgelaufene Sessions", allNonExpiredSessions.size());
+        for (AnonymusSessionInfo sessionInformation : allNonExpiredSessions) {
+            Date lastRequest = sessionInformation.getLastRequest();
+            int maxInactiveInterval = (int) defaultMaxInactiveInterval.getSeconds();
+            Instant expirationTime =
+                    lastRequest.toInstant().plus(maxInactiveInterval, ChronoUnit.SECONDS);
+
+            if (now.isAfter(expirationTime)) {
+                log.info(
+                        "SessionID: {} expiration time: {} Current time: {}",
+                        sessionInformation.getSession().getId(),
+                        expirationTime,
+                        now);
+                sessionInformation.setExpired(true);
+            }
         }
     }
 }