From 7b22c72c3ebd386caa6ce4e71e27a061082a46f9 Mon Sep 17 00:00:00 2001
From: Lonami Exo <totufals@hotmail.com>
Date: Tue, 24 Jul 2018 20:38:38 +0200
Subject: [PATCH] Use UTC timezone for events.UserUpdate

---
 telethon/events/userupdate.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/telethon/events/userupdate.py b/telethon/events/userupdate.py
index 925b353b..75c18728 100644
--- a/telethon/events/userupdate.py
+++ b/telethon/events/userupdate.py
@@ -96,7 +96,8 @@ class UserUpdate(EventBuilder):
                 isinstance(status, types.UserStatusOnline) else None
 
             if self.last_seen:
-                diff = datetime.datetime.now() - self.last_seen
+                now = datetime.datetime.now(tz=datetime.timezone.utc)
+                diff = now - self.last_seen
                 if diff < datetime.timedelta(days=30):
                     self.within_months = True
                     if diff < datetime.timedelta(days=7):