fix time zone incorrect in Price Check activity

app/price_view.py

@@ -63,7 +63,7 @@ def get_historic_prices_statement(sort, product, unit, organic=None, limit='90 d
         #('ts', SQL('{identifier}::date').format(
         #    identifier=Identifier('ts'),
         #)),
-        ('%d/%m %_I%P', Identifier('transactions', 'ts')),
+        ('%d/%m %_I%P', SQL("""(transactions.ts AT TIME ZONE 'UTC')::timestamp without time zone""")),
         #('store', Identifier('stores', 'name')),
         ('code', Identifier('stores', 'code')),
         #('description', Identifier('transactions','description')),