diff --git a/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/storage/LocalData.kt b/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/storage/LocalData.kt
index 279d405c9973be0178628c99591b7104c7c9297f..2e0347c40203980058112cec2e5e6e660055134e 100644
--- a/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/storage/LocalData.kt
+++ b/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/storage/LocalData.kt
@@ -383,46 +383,24 @@ object LocalData {
      * SERVER FETCH DATA
      ****************************************************/
 
-    /**
-     * Gets the last time the server fetched the diagnosis keys from the server as Date object
-     * from the EncryptedSharedPrefs
-     *
-     * @return timestamp as Date
-     */
-    // TODO should be changed to Long as well to align with other timestamps
-    fun lastTimeDiagnosisKeysFromServerFetch(): Date? {
-        val time = getSharedPreferenceInstance().getLong(
-            CoronaWarnApplication.getAppContext()
-                .getString(R.string.preference_timestamp_diagnosis_keys_fetch),
-            0L
-        )
-        if (time == 0L) return null
-
-        return Date(time)
+    private val dateMapperForFetchTime: (Long) -> Date? = {
+        if (it != 0L) Date(it) else null
     }
 
-    fun lastTimeDiagnosisKeysFromServerFetchFlow() =
+    private val lastTimeDiagnosisKeysFetchedFlowPref by lazy {
         getSharedPreferenceInstance()
-            .createFlowPreference<Long?>(CoronaWarnApplication.getAppContext()
-                .getString(R.string.preference_timestamp_diagnosis_keys_fetch), 0L).flow
-            .map { if (it != null && it != 0L) Date(it) else null }
-
-    /**
-     * Sets the last time the server fetched the diagnosis keys from the server as Date object
-     * from the EncryptedSharedPrefs
-     *
-     * @param value timestamp as Date
-     */
-    fun lastTimeDiagnosisKeysFromServerFetch(value: Date?) {
-        getSharedPreferenceInstance().edit(true) {
-            putLong(
-                CoronaWarnApplication.getAppContext()
-                    .getString(R.string.preference_timestamp_diagnosis_keys_fetch),
-                value?.time ?: 0L
-            )
-        }
+            .createFlowPreference<Long>(key = "preference_timestamp_diagnosis_keys_fetch", 0L)
     }
 
+    fun lastTimeDiagnosisKeysFromServerFetchFlow() = lastTimeDiagnosisKeysFetchedFlowPref.flow
+        .map { dateMapperForFetchTime(it) }
+
+    fun lastTimeDiagnosisKeysFromServerFetch() =
+        dateMapperForFetchTime(lastTimeDiagnosisKeysFetchedFlowPref.value)
+
+    fun lastTimeDiagnosisKeysFromServerFetch(value: Date?) =
+        lastTimeDiagnosisKeysFetchedFlowPref.update { value?.time ?: 0L }
+
     /**
      * Gets the last time of successful risk level calculation as long
      * from the EncryptedSharedPrefs
diff --git a/Corona-Warn-App/src/main/res/values-bg/strings.xml b/Corona-Warn-App/src/main/res/values-bg/strings.xml
index 7190043852699ba78b8454cb60ccc1dadfe9f525..b12239756cda878ecf465ec29494361cd620ad17 100644
--- a/Corona-Warn-App/src/main/res/values-bg/strings.xml
+++ b/Corona-Warn-App/src/main/res/values-bg/strings.xml
@@ -20,8 +20,6 @@
     <!-- NOTR -->
     <string name="preference_tracing"><xliff:g id="preference">"preference_tracing"</xliff:g></string>
     <!-- NOTR -->
-    <string name="preference_timestamp_diagnosis_keys_fetch"><xliff:g id="preference">"preference_timestamp_diagnosis_keys_fetch"</xliff:g></string>
-    <!-- NOTR -->
     <string name="preference_timestamp_manual_diagnosis_keys_retrieval"><xliff:g id="preference">"preference_timestamp_manual_diagnosis_keys_retrieval"</xliff:g></string>
     <!-- NOTR -->
     <string name="preference_string_google_api_token"><xliff:g id="preference">"preference_m_string_google_api_token"</xliff:g></string>
diff --git a/Corona-Warn-App/src/main/res/values-de/strings.xml b/Corona-Warn-App/src/main/res/values-de/strings.xml
index 8b872f6fd19fe7d4fb76aef2958e10144b089fc6..b00715903fcf8a1c2b114a2b9124188a2087fb67 100644
--- a/Corona-Warn-App/src/main/res/values-de/strings.xml
+++ b/Corona-Warn-App/src/main/res/values-de/strings.xml
@@ -21,8 +21,6 @@
     <!-- NOTR -->
     <string name="preference_tracing"><xliff:g id="preference">"preference_tracing"</xliff:g></string>
     <!-- NOTR -->
-    <string name="preference_timestamp_diagnosis_keys_fetch"><xliff:g id="preference">"preference_timestamp_diagnosis_keys_fetch"</xliff:g></string>
-    <!-- NOTR -->
     <string name="preference_timestamp_manual_diagnosis_keys_retrieval"><xliff:g id="preference">"preference_timestamp_manual_diagnosis_keys_retrieval"</xliff:g></string>
     <!-- NOTR -->
     <string name="preference_string_google_api_token"><xliff:g id="preference">"preference_m_string_google_api_token"</xliff:g></string>
diff --git a/Corona-Warn-App/src/main/res/values-en/strings.xml b/Corona-Warn-App/src/main/res/values-en/strings.xml
index 9d8ce585c349ee851eb51c61acf866140fad5166..91c76999935c86873bccde7f657d70954c32abd8 100644
--- a/Corona-Warn-App/src/main/res/values-en/strings.xml
+++ b/Corona-Warn-App/src/main/res/values-en/strings.xml
@@ -20,8 +20,6 @@
     <!-- NOTR -->
     <string name="preference_tracing"><xliff:g id="preference">"preference_tracing"</xliff:g></string>
     <!-- NOTR -->
-    <string name="preference_timestamp_diagnosis_keys_fetch"><xliff:g id="preference">"preference_timestamp_diagnosis_keys_fetch"</xliff:g></string>
-    <!-- NOTR -->
     <string name="preference_timestamp_manual_diagnosis_keys_retrieval"><xliff:g id="preference">"preference_timestamp_manual_diagnosis_keys_retrieval"</xliff:g></string>
     <!-- NOTR -->
     <string name="preference_string_google_api_token"><xliff:g id="preference">"preference_m_string_google_api_token"</xliff:g></string>
diff --git a/Corona-Warn-App/src/main/res/values-pl/strings.xml b/Corona-Warn-App/src/main/res/values-pl/strings.xml
index 7a02cc77e432e7b759abccf6b70709355bc9e5bb..ca91dc58b0906d568ce8935e4f0145479ade1e08 100644
--- a/Corona-Warn-App/src/main/res/values-pl/strings.xml
+++ b/Corona-Warn-App/src/main/res/values-pl/strings.xml
@@ -20,8 +20,6 @@
     <!-- NOTR -->
     <string name="preference_tracing"><xliff:g id="preference">"preference_tracing"</xliff:g></string>
     <!-- NOTR -->
-    <string name="preference_timestamp_diagnosis_keys_fetch"><xliff:g id="preference">"preference_timestamp_diagnosis_keys_fetch"</xliff:g></string>
-    <!-- NOTR -->
     <string name="preference_timestamp_manual_diagnosis_keys_retrieval"><xliff:g id="preference">"preference_timestamp_manual_diagnosis_keys_retrieval"</xliff:g></string>
     <!-- NOTR -->
     <string name="preference_string_google_api_token"><xliff:g id="preference">"preference_m_string_google_api_token"</xliff:g></string>
diff --git a/Corona-Warn-App/src/main/res/values-ro/strings.xml b/Corona-Warn-App/src/main/res/values-ro/strings.xml
index 450e1d43d8ed8d36d654740c95fa828f1fa4ce01..e4113c7775d3d935cbe42ad3d799909bd5c557f0 100644
--- a/Corona-Warn-App/src/main/res/values-ro/strings.xml
+++ b/Corona-Warn-App/src/main/res/values-ro/strings.xml
@@ -20,8 +20,6 @@
     <!-- NOTR -->
     <string name="preference_tracing"><xliff:g id="preference">"preference_tracing"</xliff:g></string>
     <!-- NOTR -->
-    <string name="preference_timestamp_diagnosis_keys_fetch"><xliff:g id="preference">"preference_timestamp_diagnosis_keys_fetch"</xliff:g></string>
-    <!-- NOTR -->
     <string name="preference_timestamp_manual_diagnosis_keys_retrieval"><xliff:g id="preference">"preference_timestamp_manual_diagnosis_keys_retrieval"</xliff:g></string>
     <!-- NOTR -->
     <string name="preference_string_google_api_token"><xliff:g id="preference">"preference_m_string_google_api_token"</xliff:g></string>
diff --git a/Corona-Warn-App/src/main/res/values-tr/strings.xml b/Corona-Warn-App/src/main/res/values-tr/strings.xml
index 6cfc04d3387a2264a34c84c8fcfa388f74338253..bc2369beb756168e1a0131c6b5ad03a0ce89180d 100644
--- a/Corona-Warn-App/src/main/res/values-tr/strings.xml
+++ b/Corona-Warn-App/src/main/res/values-tr/strings.xml
@@ -20,8 +20,6 @@
     <!-- NOTR -->
     <string name="preference_tracing"><xliff:g id="preference">"preference_tracing"</xliff:g></string>
     <!-- NOTR -->
-    <string name="preference_timestamp_diagnosis_keys_fetch"><xliff:g id="preference">"preference_timestamp_diagnosis_keys_fetch"</xliff:g></string>
-    <!-- NOTR -->
     <string name="preference_timestamp_manual_diagnosis_keys_retrieval"><xliff:g id="preference">"preference_timestamp_manual_diagnosis_keys_retrieval"</xliff:g></string>
     <!-- NOTR -->
     <string name="preference_string_google_api_token"><xliff:g id="preference">"preference_m_string_google_api_token"</xliff:g></string>
diff --git a/Corona-Warn-App/src/main/res/values/strings.xml b/Corona-Warn-App/src/main/res/values/strings.xml
index 35bfadc55443338cd197aaef22edde94a91473bf..8299780eedc50fac4e1e5fcb2eee5f30783d6dcb 100644
--- a/Corona-Warn-App/src/main/res/values/strings.xml
+++ b/Corona-Warn-App/src/main/res/values/strings.xml
@@ -21,8 +21,6 @@
     <!-- NOTR -->
     <string name="preference_tracing"><xliff:g id="preference">"preference_tracing"</xliff:g></string>
     <!-- NOTR -->
-    <string name="preference_timestamp_diagnosis_keys_fetch"><xliff:g id="preference">"preference_timestamp_diagnosis_keys_fetch"</xliff:g></string>
-    <!-- NOTR -->
     <string name="preference_timestamp_manual_diagnosis_keys_retrieval"><xliff:g id="preference">"preference_timestamp_manual_diagnosis_keys_retrieval"</xliff:g></string>
     <!-- NOTR -->
     <string name="preference_string_google_api_token"><xliff:g id="preference">"preference_m_string_google_api_token"</xliff:g></string>