Write SQL query to solve given problem: Please list the opening time on Mondays of all the Yelp_Businesses in Anthem that are still running.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.opening_time FROM Business_Hours AS T1 INNER JOIN Days AS T2 ON T1.day_id = T2.day_id INNER JOIN Business AS T3 ON T1.business_id = T3.business_id WHERE T2.day_of_week LIKE 'Monday' AND T3.city LIKE 'Anthem' AND T3.active LIKE 'True' GROUP BY T1.opening_time