diff --git a/api/app_questionnaires.php b/api/app_questionnaires.php
index aa1d3d3..0eb139b 100644
--- a/api/app_questionnaires.php
+++ b/api/app_questionnaires.php
@@ -76,6 +76,7 @@ if ($qnID) {
         if (isset($config['symptoms']))    $q['symptoms']    = $config['symptoms'];
         if (isset($config['range']))       $q['range']       = $config['range'];
         if (isset($config['constraints'])) $q['constraints'] = $config['constraints'];
+        if (isset($config['precision']))   $q['precision']   = $config['precision'];
         if (isset($config['minSelection'])) $q['minSelection'] = $config['minSelection'];
         if (isset($config['maxLength']))    $q['maxLength']    = (int)$config['maxLength'];
         if (!empty($config['multiline']))   $q['multiline']    = true;
diff --git a/handlers/app_questionnaires.php b/handlers/app_questionnaires.php
index 9915f46..e17e15b 100644
--- a/handlers/app_questionnaires.php
+++ b/handlers/app_questionnaires.php
@@ -267,6 +267,7 @@ if ($qnID) {
         if (isset($config['symptoms']))     $q['symptoms']     = $config['symptoms'];
         if (isset($config['range']))        $q['range']        = $config['range'];
         if (isset($config['constraints']))  $q['constraints']  = $config['constraints'];
+        if (isset($config['precision']))    $q['precision']    = $config['precision'];
         if (isset($config['minSelection'])) $q['minSelection'] = $config['minSelection'];
         if (isset($config['maxLength']))    $q['maxLength']    = (int)$config['maxLength'];
         if (!empty($config['multiline']))   $q['multiline']    = true;
diff --git a/import_questionnaires.php b/import_questionnaires.php
index 3050999..a4b4a86 100644
--- a/import_questionnaires.php
+++ b/import_questionnaires.php
@@ -85,13 +85,14 @@ try {
             if (isset($q['symptoms'])) $config['symptoms'] = $q['symptoms'];
             if (isset($q['range']))    $config['range']    = $q['range'];
             if (isset($q['constraints'])) $config['constraints'] = $q['constraints'];
+            if (isset($q['precision']))    $config['precision']    = $q['precision'];
             if (isset($q['minSelection'])) $config['minSelection'] = $q['minSelection'];
             if (isset($q['maxLength']))    $config['maxLength']    = (int)$q['maxLength'];
             if (!empty($q['multiline']))   $config['multiline']    = true;
             if (isset($q['otherNextQuestionId'])) $config['otherNextQuestionId'] = $q['otherNextQuestionId'];
             if (isset($q['otherOptionKey']))      $config['otherOptionKey']      = $q['otherOptionKey'];
             if (isset($q['config']) && is_array($q['config'])) {
-                foreach (['otherNextQuestionId', 'otherOptionKey', 'hint', 'maxLength', 'multiline', 'textKey'] as $ck) {
+                foreach (['otherNextQuestionId', 'otherOptionKey', 'hint', 'maxLength', 'multiline', 'textKey', 'precision'] as $ck) {
                     if (isset($q['config'][$ck])) {
                         $config[$ck] = $q['config'][$ck];
                     }
diff --git a/website/js/pages/editor.js b/website/js/pages/editor.js
index ba9b3a1..a6ba455 100644
--- a/website/js/pages/editor.js
+++ b/website/js/pages/editor.js
@@ -146,7 +146,16 @@ function configFormHTML(layout, config, prefix) {
         case 'date_spinner': {
             const notBefore = config.constraints?.notBefore || '';
             const notAfter = config.constraints?.notAfter || '';
+            const precision = config.precision || 'full';
             html = `
+                <div class="form-group">
+                    <label>Date precision</label>
+                    <select id="${prefix}_precision">
+                        <option value="full" ${precision === 'full' ? 'selected' : ''}>Year, month, and day</option>
+                        <option value="year_month" ${precision === 'year_month' ? 'selected' : ''}>Year and month</option>
+                        <option value="year" ${precision === 'year' ? 'selected' : ''}>Year only</option>
+                    </select>
+                </div>
                 <div class="form-row">
                     <div class="form-group">
                         <label>Not before (question key)</label>
@@ -257,6 +266,8 @@ function readConfigFromForm(layout, prefix) {
             };
             break;
         case 'date_spinner': {
+            const prec = val('precision') || 'full';
+            if (prec && prec !== 'full') config.precision = prec;
             const nb = val('notBefore');
             const na = val('notAfter');
             if (nb || na) {
diff --git a/website/temp-assets/questionnaire_0_readme.json b/website/temp-assets/questionnaire_0_readme.json
index 2278137..c75af54 100644
--- a/website/temp-assets/questionnaire_0_readme.json
+++ b/website/temp-assets/questionnaire_0_readme.json
@@ -56,17 +56,19 @@
 
     {
       "id": "q4",
-      "_comment": "Frage mit Spinner zur Auswahl des Datums",
+      "_comment": "Datumsfrage. precision: full (YYYY-MM-DD), year_month (YYYY-MM), year (YYYY).",
       "layout": "date_spinner",
-      "question": "departure_country"
+      "question": "departure_country",
+      "precision": "year_month"
     },
 
 
     {
       "id": "q5",
-      "_comment": "Frage mit Spinner zur Auswahl des Datums. Über constraints und notBefore und notAfter, ist es möglich das Datum nicht in der Zukunft oder Vergangenheit zu wählen.",
+      "_comment": "Datumsfrage mit constraints. precision steuert Tag/Monat/Jahr-Spinner.",
       "layout": "date_spinner",
       "question": "since_in_germany",
+      "precision": "year_month",
       "constraints": {
         "notBefore": "departure_country",
         "notAfter": "departure_country"
diff --git a/website/temp-assets/questionnaire_1_demographic_information.json b/website/temp-assets/questionnaire_1_demographic_information.json
index f255d40..4eaf298 100644
--- a/website/temp-assets/questionnaire_1_demographic_information.json
+++ b/website/temp-assets/questionnaire_1_demographic_information.json
@@ -121,12 +121,14 @@
     {
       "id": "q13",
       "layout": "date_spinner",
-      "question": "departure_country"
+      "question": "departure_country",
+      "precision": "year_month"
     },
     {
       "id": "q14",
       "layout": "date_spinner",
       "question": "since_in_germany",
+      "precision": "year_month",
       "constraints": {
         "notBefore": "departure_country"
       }
@@ -280,6 +282,7 @@
       "id": "q24",
       "layout": "date_spinner",
       "question": "provisional_accommodation_since",
+      "precision": "year_month",
       "constraints": {
         "notBefore": "since_in_germany"
       }
@@ -288,6 +291,7 @@
       "id": "q25",
       "layout": "date_spinner",
       "question": "asylum_procedure_since",
+      "precision": "year_month",
       "constraints": {
         "notBefore": "since_in_germany"
       }