diff --git a/src/bundle/Resources/public/js/scripts/fieldType/ezdatetime.js b/src/bundle/Resources/public/js/scripts/fieldType/ezdatetime.js
index 9c4025bb27..6a409aff5a 100644
--- a/src/bundle/Resources/public/js/scripts/fieldType/ezdatetime.js
+++ b/src/bundle/Resources/public/js/scripts/fieldType/ezdatetime.js
@@ -65,6 +65,7 @@
     const datetimeConfig = {
         enableTime: true,
         time_24hr: true,
+        formatDate: (date) => new Date(date).toLocaleString(),
     };
     const updateInputValue = (sourceInput, dates) => {
         const event = new CustomEvent(EVENT_VALUE_CHANGED);
@@ -76,7 +77,7 @@
             return;
         }
 
-        const selectedDate = dates[0];
+        const selectedDate = new Date(dates[0]);
         const selectedDateWithUserTimezone = convertDateToTimezone(selectedDate, userTimezone, true);
         const timestamp = Math.floor(selectedDateWithUserTimezone.valueOf() / 1000);
 
@@ -94,8 +95,8 @@
         const sourceInput = field.querySelector(SELECTOR_INPUT);
         const flatPickrInput = field.querySelector(SELECTOR_FLATPICKR_INPUT);
         const btnClear = field.querySelector('.ez-data-source__btn--clear-input');
-        const secondsEnabled = sourceInput.dataset.seconds === '1';
-        const formatDate = secondsEnabled ? (date) => date.toLocaleString() : (date) => eZ.helpers.timezone.formatDate(date);
+        // const secondsEnabled = sourceInput.dataset.seconds === '1';
+        // const formatDate = secondsEnabled ? (date) => date.toLocaleString() : (date) => eZ.helpers.timezone.formatDate(date);
         let defaultDate = null;
 
         if (sourceInput.value) {
@@ -110,8 +111,8 @@
             Object.assign({}, datetimeConfig, {
                 onChange: updateInputValue.bind(null, sourceInput),
                 defaultDate,
-                enableSeconds: secondsEnabled,
-                formatDate,
+                enableSeconds: !!parseInt(sourceInput.dataset.seconds, 10),
+                // formatDate,
             })
         );