fixed min and max datetimes

src/core/utils/makeDateTime.js

@@ -0,0 +1,9 @@
+export const makeDateTime = (date, time) => {
+    if (!date) return null;
+    const d = new Date(date);
+    if (time) {
+        const t = new Date(time);
+        d.setHours(t.getHours(), t.getMinutes(), 0, 0);
+    }
+    return d;
+};