diff --git a/account/migrations/0009_alter_userdevicedetails_device_id.py b/account/migrations/0009_alter_userdevicedetails_device_id.py
new file mode 100644
index 0000000..2db22a3
--- /dev/null
+++ b/account/migrations/0009_alter_userdevicedetails_device_id.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.2.2 on 2023-07-20 11:38
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0008_userdevicedetails'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='userdevicedetails',
+            name='device_id',
+            field=models.CharField(blank=True, max_length=500, null=True),
+        ),
+    ]
diff --git a/account/models.py b/account/models.py
index d515e01..784a60e 100644
--- a/account/models.py
+++ b/account/models.py
@@ -152,7 +152,7 @@ class UserDeviceDetails(models.Model):
     """
     user = models.OneToOneField(User, on_delete=models.CASCADE, related_name='user_device_details')
     """Device ID"""
-    device_id = models.CharField(max_length=500)
+    device_id = models.CharField(max_length=500, null=True, blank=True)
 
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
diff --git a/guardian/utils.py b/guardian/utils.py
index 45bf69b..3254b82 100644
--- a/guardian/utils.py
+++ b/guardian/utils.py
@@ -3,12 +3,12 @@
 import oss2
 """Import setting"""
 from django.conf import settings
+import logging
+import requests
 """Import tempfile"""
 import tempfile
 # Import date time module's function
 from datetime import datetime, time
-# Import real time client module
-import ntplib
 # import Number constant
 from base.constants import NUMBER
 # Import Junior's model
@@ -44,16 +44,19 @@ def upload_image_to_alibaba(image, filename):
         new_filename = filename.replace(' ', '%20')
     return f"https://{settings.ALIYUN_OSS_BUCKET_NAME}.{settings.ALIYUN_OSS_ENDPOINT}/{new_filename}"
 
-def real_time():
-    """ real time """
-    # Fetch real time.
-    # time is not depend on system time
-    # Get the current datetime
-    ntp_client = ntplib.NTPClient()
-    ntp_server = 'pool.ntp.org'
-    response = ntp_client.request(ntp_server)
-    current_datetime = datetime.fromtimestamp(response.tx_time)
-    return current_datetime
+
+def real_time(timezone='Asia/Riyadh'):
+    url = f'http://worldtimeapi.org/api/timezone/{timezone}'
+    response = requests.get(url)
+    if response.status_code == 200:
+        data = response.json()
+        time_str = data['datetime']
+        realtime = datetime.fromisoformat(time_str.replace('Z', '+00:00')).replace(tzinfo=None)
+        return realtime
+    else:
+        logging.error("Could not fetch error")
+        return None
+
 
 def convert_timedelta_into_datetime(time_difference):
     """convert date time"""