diff --git a/src/views/SimproV2/CreatedProyek/DialogFormProyek.js b/src/views/SimproV2/CreatedProyek/DialogFormProyek.js
index 6cddc65..f475c47 100644
--- a/src/views/SimproV2/CreatedProyek/DialogFormProyek.js
+++ b/src/views/SimproV2/CreatedProyek/DialogFormProyek.js
@@ -389,10 +389,18 @@ const DialogFormProyek = ({
 
 	const handleDatePickerStart = (date, dateString) => {
 		setStartDate(date);
+    if (endDate) {
+      const duration = moment(endDate).diff(moment(date), 'days');
+      setProjectDuration(duration);
+    }
 	};
 
 	const handleDatePickerEnd = (date, dateString) => {
 		setEndDate(date);
+    if (startDate) {
+      const duration = moment(date).diff(moment(startDate), 'days');
+      setProjectDuration(duration);
+    }
 	};
 
 	const nextStep = () => {