ph_tz = pytz.timezone('America/Phoenix')
east_tz = pytz.timezone('US/Eastern')
from_naive_dt = datetime(2011, 11, 1, 8, 11, 22)
east_dt = convert(from_naive_dt, ph_tz, east_tz)

def p(dt):
    print(dt.strftime('%Y-%m-%d %H:%M:%S %Z%z'))
p(east_dt)
converting mountain standard time to eastern standard time in python