timestamp takes into account non UTC in weather

rowers/weather.py

@@ -5,6 +5,7 @@ import xml.etree.ElementTree as ET
 import time
 from datetime import datetime
 from rowingdata import rowingdata,geo_distance
+import arrow
 import pandas as pd
 from rowers.models import Rower, Workout
 
@@ -36,8 +37,8 @@ def get_weather_data(long,lat,unixtime):
 # Get Metar data
 def get_metar_data(airportcode,unixtime):
 
-    timestamp = datetime.utcfromtimestamp(unixtime).isoformat()+'Z'
-
+    timestamp = arrow.get(unixtime).isoformat()
+    
     url = "https://www.aviationweather.gov/adds/dataserver_current/httpparam?dataSource=metars&requestType=retrieve&format=xml&startTime="
     url += str(unixtime-3600)
     url += "&endTime="
@@ -122,8 +123,8 @@ def get_wind_data(lat,long,unixtime):
     windspeed = windspeed*(0.1)**0.34
     windspeed = 0.01*int(100*windspeed)
     
-    timestamp = datetime.utcfromtimestamp(unixtime).isoformat()+'Z'
-
+    timestamp = arrow.get(unixtime).isoformat()
+    
     message = 'Summary for your location at '+timestamp+': '+summary
     message += '. Temperature '+str(temperature)+'F/'+str(temperaturec)+'C'