diff --git a/atlas/modeles/repositories/vmObservationsMaillesRepository.py b/atlas/modeles/repositories/vmObservationsMaillesRepository.py
index c6385515..3628ed93 100644
--- a/atlas/modeles/repositories/vmObservationsMaillesRepository.py
+++ b/atlas/modeles/repositories/vmObservationsMaillesRepository.py
@@ -83,7 +83,7 @@ def lastObservationsMailles(connection, mylimit, idPhoto):
             "id_observation": o.id_observation,
             "id_maille": o.id_maille,
             "cd_ref": o.cd_ref,
-            "dateobs": str(o.dateobs),
+            "dateobs": o.dateobs,
             "altitude_retenue": o.altitude_retenue,
             "taxon": taxon,
             "geojson_maille": json.loads(o.geojson_maille),
diff --git a/atlas/modeles/repositories/vmObservationsRepository.py b/atlas/modeles/repositories/vmObservationsRepository.py
index 95c7cde7..cf17c55c 100644
--- a/atlas/modeles/repositories/vmObservationsRepository.py
+++ b/atlas/modeles/repositories/vmObservationsRepository.py
@@ -95,7 +95,7 @@ def lastObservations(connection, mylimit, idPhoto):
         temp = dict(o)
         temp.pop("the_geom_point", None)
         temp["geojson_point"] = json.loads(o.geojson_point or "{}")
-        temp["dateobs"] = str(o.dateobs)
+        temp["dateobs"] = o.dateobs
         temp["group2_inpn"] = utils.deleteAccent(o.group2_inpn)
         temp["pathImg"] = utils.findPath(o)
         obsList.append(temp)
@@ -122,7 +122,7 @@ def lastObservationsCommune(connection, mylimit, insee):
         temp = dict(o)
         temp.pop("the_geom_point", None)
         temp["geojson_point"] = json.loads(o.geojson_point or "{}")
-        temp["dateobs"] = str(o.dateobs)
+        temp["dateobs"] = o.dateobs
         obsList.append(temp)
     return obsList
 
@@ -150,7 +150,7 @@ def getObservationTaxonCommune(connection, insee, cd_ref):
         temp = dict(o)
         temp.pop("the_geom_point", None)
         temp["geojson_point"] = json.loads(o.geojson_point or "{}")
-        temp["dateobs"] = str(o.dateobs)
+        temp["dateobs"] = o.dateobs
         obsList.append(temp)
     return obsList
 
diff --git a/atlas/static/mapGenerator.js b/atlas/static/mapGenerator.js
index 54cc3086..c1df7976 100644
--- a/atlas/static/mapGenerator.js
+++ b/atlas/static/mapGenerator.js
@@ -19,6 +19,44 @@ const areaBorderColor = String(
   )
 );
 
+function formatDate(date) {
+  const date_options = {
+    year: 'numeric',
+    month: 'numeric',
+    day: 'numeric',
+  };
+  return date.toLocaleDateString(undefined, date_options);
+}
+
+function generateObservationPopup(feature, linkSpecies = false) {
+  /*
+    Génération popup des observations
+    linkSpecies :  indique s'il faut ou non rajouter un lien vers la fiche espèce
+      (cas des fiches communes ; home page)
+  */
+  date = new Date(feature.properties.dateobs);
+  popupContent = `
+    <b>Date: </b> ${formatDate(date)}
+    </br><b>Altitude: </b> ${feature.properties.altitude_retenue}
+    ${observersTxt(feature)}`
+
+  // verifie si le champs effectif est rempli
+  if (feature.properties.effectif_total != undefined) {
+    popupContent = `${popupContent} </br><b>Effectif: </b>${feature.properties.effectif_total}`
+  }
+
+  // S'il faut lier à une fiche espèce
+  if (linkSpecies == true) {
+    popupContent = `<b>Espèce: </b> ${feature.properties.taxon} </br>
+      ${popupContent}
+      </br>
+      <a href='${configuration.URL_APPLICATION}${language}/espece/${feature.properties.cd_ref}'> Fiche espèce </a>
+      `
+  }
+  return popupContent
+}
+
+
 function generateMap(zoomHomeButton) {
   // Map initialization
   firstMapTile = L.tileLayer(configuration.MAP.FIRST_MAP.url, {
@@ -153,24 +191,9 @@ function observersTxt(feature) {
 //****** Fonction fiche espècce ***********
 
 // Popup Point
-function onEachFeaturePoint(feature, layer) {
-  popupContent =
-    "<b>Date: </b>" +
-    feature.properties.dateobs +
-    "</br><b>Altitude: </b>" +
-    feature.properties.altitude_retenue +
-    observersTxt(feature)
-
-  // verifie si le champs effectif est rempli
-  if (feature.properties.effectif_total != undefined) {
-    layer.bindPopup(
-      popupContent +
-        "</br><b>Effectif: </b>" +
-        feature.properties.effectif_total
-    );
-  } else {
-    layer.bindPopup(popupContent);
-  }
+function onEachFeaturePoint(feature, layer) { 
+  popupContent = generateObservationPopup(feature, false);
+  layer.bindPopup(popupContent);
 }
 
 // popup Maille
@@ -425,43 +448,13 @@ function displayMarkerLayerFicheEspece(
 /* *** Point ****/
 
 function onEachFeaturePointLastObs(feature, layer) {
-  popupContent =
-    "<b>Espèce: </b>" +
-    feature.properties.taxon +
-    "</br><b>Date: </b>" +
-    feature.properties.dateobs +
-    "</br><b>Altitude: </b>" +
-    feature.properties.altitude_retenue;
-
-  layer.bindPopup(
-    popupContent +
-      "</br> <a href='" +
-      configuration.URL_APPLICATION +
-      language +
-      "/espece/" +
-      feature.properties.cd_ref +
-      "'> Fiche espèce </a>"
-  );
+  popupContent = generateObservationPopup(feature, true);
+  layer.bindPopup(popupContent);
 }
 
 function onEachFeaturePointCommune(feature, layer) {
-  popupContent =
-    "<b>Espèce: </b>" +
-    feature.properties.taxon +
-    "</br><b>Date: </b>" +
-    feature.properties.dateobs +
-    "</br><b>Altitude: </b>" +
-    feature.properties.altitude_retenue +
-    observersTxt(feature)
-
-  layer.bindPopup(
-    popupContent +
-      "</br> <a href='" +
-      configuration.URL_APPLICATION +
-      "/espece/" +
-      feature.properties.cd_ref +
-      "'> Fiche espèce </a>"
-  );
+  popupContent = generateObservationPopup(feature, true);
+  layer.bindPopup(popupContent);
 }
 
 function generateGeojsonPointLastObs(observationsPoint) {
diff --git a/atlas/templates/home/lastObs.html b/atlas/templates/home/lastObs.html
index 216b3974..7ce5be3e 100644
--- a/atlas/templates/home/lastObs.html
+++ b/atlas/templates/home/lastObs.html
@@ -45,7 +45,7 @@ <h3 class="card-title"><i class="fas fa-binoculars icon-color-title"></i>
                                 </a>
                             </span>
                             <p class="singleTaxon name" cdref="{{ obs.cd_ref }}">{{ obs.taxon|safe }}<br />
-                                {{ obs.dateobs }} </p>
+                                {{obs.dateobs | dateformat("short")}} </p>
                             <span class="hidden" hidden="true">{{ obs.cd_ref }}</span>
                             </tr>
                             {% endfor %}
diff --git a/atlas/templates/home/newSpecies.html b/atlas/templates/home/newSpecies.html
index 72f349f1..69f732ae 100644
--- a/atlas/templates/home/newSpecies.html
+++ b/atlas/templates/home/newSpecies.html
@@ -47,7 +47,7 @@ <h3 class="card-title title-spaced">
 
             </div>
             <div class="card-footer center text-muted">
-                {{species.date}}
+                {{species.date | dateformat("short")}}
             </div>
         </div>
     </div>