diff --git a/src/app/pages/dates/dates.component.html b/src/app/pages/dates/dates.component.html
index cac4c28a..196317cd 100644
--- a/src/app/pages/dates/dates.component.html
+++ b/src/app/pages/dates/dates.component.html
@@ -90,7 +90,8 @@
             *ngIf="config.allowSeveralHours=='true'"
             class="btn btn-primary"
             (click)="addTimetoDate(choice, id)"
-        > Ajouter un choix d'heure
+        >
+            {{"dates.addTime"|translate}}
         </button>
         <div
             class="several-times"
diff --git a/src/assets/i18n/en.json b/src/assets/i18n/en.json
index 14073764..7963899f 100644
--- a/src/assets/i18n/en.json
+++ b/src/assets/i18n/en.json
@@ -37,7 +37,8 @@
             "identical": "same",
             "different": "possibly different"
         },
-        "add": "Add a date range",
+        "add": "Add a date choice",
+        "add_time": "Add a time span",
         "count_dates": "choices of dates"
     },
     "choices": {
diff --git a/src/assets/i18n/fr.json b/src/assets/i18n/fr.json
index 1f6621e2..a0101366 100644
--- a/src/assets/i18n/fr.json
+++ b/src/assets/i18n/fr.json
@@ -38,7 +38,7 @@
             "different": "possiblement différentes"
         },
         "add": "Ajouter une plage de dates",
-        "addTime": "Ajouter une plage d'heure",
+        "add_time": "Ajouter une plage d'heure",
         "empty": "Vider",
         "count_dates": "choix de dates"
     },