Update app.py

app.py

@@ -30,7 +30,7 @@ data_source = st.sidebar.selectbox(
 # --- API CALLING FUNCTIONS ---  
 def fetch_openweather_data(lat, lon, datetime_input):  
     """Fetches current weather data from OpenWeather's One Call API."""  
-    timestamp = int(datetime_input.timestamp())  
+    timestamp = int(datetime_input.astimezone(pytz.utc))  
     url = f"https://api.openweathermap.org/data/3.0/onecall/timemachine?lat={lat}&lon={lon}&dt={timestamp}&appid={OPENWEATHER_API_KEY}&units=metric"  
     try:  
         response = requests.get(url)