diff --git a/src/main/java/app/coronawarn/quicktest/model/keycloak/KeycloakGroupDetails.java b/src/main/java/app/coronawarn/quicktest/model/keycloak/KeycloakGroupDetails.java
index 15a11c67..3fa6253b 100644
--- a/src/main/java/app/coronawarn/quicktest/model/keycloak/KeycloakGroupDetails.java
+++ b/src/main/java/app/coronawarn/quicktest/model/keycloak/KeycloakGroupDetails.java
@@ -21,6 +21,7 @@
 package app.coronawarn.quicktest.model.keycloak;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import java.util.List;
 import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.Size;
 import lombok.Data;
@@ -50,8 +51,8 @@ public class KeycloakGroupDetails {
 
     private String email;
 
-    @Size(max = 50)
-    private String openingHours;
+    @Size(max = 7)
+    private List<@Size(max = 64) String> openingHours;
 
     private Boolean appointmentRequired;
 
diff --git a/src/main/java/app/coronawarn/quicktest/service/KeycloakService.java b/src/main/java/app/coronawarn/quicktest/service/KeycloakService.java
index 97ee8267..9a8e8e32 100644
--- a/src/main/java/app/coronawarn/quicktest/service/KeycloakService.java
+++ b/src/main/java/app/coronawarn/quicktest/service/KeycloakService.java
@@ -29,6 +29,7 @@
 import app.coronawarn.quicktest.model.keycloak.KeycloakUserResponse;
 import app.coronawarn.quicktest.model.map.MapEntrySingleResponse;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -249,7 +250,7 @@ public KeycloakGroupDetails getSubGroupDetails(String groupId) {
                     mapEntry.getAppointment()));
             if (mapEntry.getOpeningHours() != null) {
                 groupDetails.setOpeningHours(
-                        mapEntry.getOpeningHours().length > 0 ? mapEntry.getOpeningHours()[0] : null);
+                        mapEntry.getOpeningHours().length > 0 ? Arrays.asList(mapEntry.getOpeningHours()) : null);
             }
         } else {
             groupDetails.setSearchPortalConsent(false);
diff --git a/src/main/java/app/coronawarn/quicktest/service/MapEntryService.java b/src/main/java/app/coronawarn/quicktest/service/MapEntryService.java
index 1831d9d0..87277bea 100644
--- a/src/main/java/app/coronawarn/quicktest/service/MapEntryService.java
+++ b/src/main/java/app/coronawarn/quicktest/service/MapEntryService.java
@@ -13,6 +13,7 @@
 import javax.transaction.Transactional;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.collections.CollectionUtils;
 import org.keycloak.admin.client.Keycloak;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Component;
@@ -124,8 +125,9 @@ private MapEntryUploadData buildUploadData(KeycloakGroupDetails details) {
         mapEntryUploadData.setEmail(details.getEmail());
         mapEntryUploadData.setAppointment(convertAppointmentToString(details.getAppointmentRequired()));
         mapEntryUploadData.setWebsite(details.getWebsite());
-        String[] openingHours = {details.getOpeningHours()};
-        mapEntryUploadData.setOpeningHours(openingHours);
+        if (CollectionUtils.isNotEmpty(details.getOpeningHours())) {
+            mapEntryUploadData.setOpeningHours(details.getOpeningHours().toArray(String[]::new));
+        }
 
         return mapEntryUploadData;
     }