diff --git a/src/filters/date.js b/src/filters/date.js
index 2766d1381..2f1799b00 100644
--- a/src/filters/date.js
+++ b/src/filters/date.js
@@ -91,3 +91,21 @@ export function toDateTimeFormat(date, showSeconds = false) {
         second: showSeconds ? '2-digit' : undefined,
     });
 }
+
+export function getTimeDifferenceWithToday(date) {
+    let today = Date.vnNew();
+    today.setHours(0, 0, 0, 0);
+
+    date = new Date(date);
+    date.setHours(0, 0, 0, 0);
+
+    return today - date;
+}
+
+export function isLower(date) {
+    return getTimeDifferenceWithToday(date) > 0;
+}
+
+export function isBigger(date) {
+    return getTimeDifferenceWithToday(date) < 0;
+}
diff --git a/src/pages/Item/ItemFixedPrice.vue b/src/pages/Item/ItemFixedPrice.vue
index 933f1b0dd..d19119720 100644
--- a/src/pages/Item/ItemFixedPrice.vue
+++ b/src/pages/Item/ItemFixedPrice.vue
@@ -19,6 +19,7 @@ import { toCurrency } from 'filters/index';
 import useNotify from 'src/composables/useNotify.js';
 import axios from 'axios';
 import { useArrayData } from 'composables/useArrayData';
+import { isLower, isBigger } from 'src/filters/date.js';
 
 const stateStore = useStateStore();
 const { t } = useI18n();
@@ -378,28 +379,6 @@ const updateMinPrice = async (value, props) => {
     });
 };
 
-const isLower = (date) => {
-    let today = Date.vnNew();
-    today.setHours(0, 0, 0, 0);
-
-    date = new Date(date);
-    date.setHours(0, 0, 0, 0);
-
-    const timeDifference = today - date;
-    if (timeDifference > 0) return 'warning';
-};
-
-const isBigger = (date) => {
-    let today = Date.vnNew();
-    today.setHours(0, 0, 0, 0);
-
-    date = new Date(date);
-    date.setHours(0, 0, 0, 0);
-
-    const timeDifference = today - date;
-    if (timeDifference < 0) return 'warning';
-};
-
 onMounted(async () => {
     stateStore.rightDrawer = true;
     params.warehouseFk = user.value.warehouseFk;