Extract date and time from a CloudSat 2B GEOPROF granule using python

import calendar

#----------------------------------------------------------------------------------------#
# Convert day of year to MM DD YYYY format

def JulianDate_to_MMDDYYY(y,jd):
    month = 1
    day = 0
    while jd - calendar.monthrange(y,month)[1] > 0 and month <= 12:
        jd = jd - calendar.monthrange(y,month)[1]
        month = month + 1
    return month,jd,y

#----------------------------------------------------------------------------------------#

cloudsat_granule_name = '2008008133740_09032_CS_2B-GEOPROF_GRANULE_P_R04_E02.hdf'

print('cloudsat_granule_name: ',cloudsat_granule_name)

year = int(cloudsat_granule_name[0:4])
day_of_year = int(cloudsat_granule_name[4:7])
hh = int(cloudsat_granule_name[7:9])
mm = int(cloudsat_granule_name[9:11])
ss = int(cloudsat_granule_name[11:13] )

print('year: ',year)
print('day_of_year: ',day_of_year)
print('hour: ',hh)
print('minute: ',mm)
print('second: ',ss)

month, day, year = JulianDate_to_MMDDYYY(year,day_of_year)

print('year: ',year)
print('month: ',month)
print('day: ',day)

cloudsat_granule_name:  2008008133740_09032_CS_2B-GEOPROF_GRANULE_P_R04_E02.hdf
year:  2008
day_of_year:  8
hour:  13
minute:  37
second:  40
year:  2008
month:  1
day:  8