#!python2
# Epoch time needs to be converted to a human readable format.
# Also, epoch time uses 10 digits, yours has 13, the last 3 are milliseconds
import datetime, time
epoch_time = 1520912901432
# truncate last 3 digits because they're milliseconds
epoch_time = str(epoch_time)[0: 10]
# print timestamp without milliseconds
print datetime.datetime.fromtimestamp(float(epoch_time)).strftime('%m/%d/%Y -- %H:%M:%S')
'''
03/12/2018 -- 21:48:21
'''
# % % % % % % % % % % % % % % % % % % % % % %
# If you need milliseconds
epoch_time = 1520912901432
# get first 10 digits
leading = str(epoch_time)[0: 10]
# get last 3 digits
trailing = str(epoch_time)[-3:]
# print timestamp with milliseconds
print datetime.datetime.fromtimestamp(float(leading)).strftime('%m/%d/%Y -- %H:%M:%S.') + ('%s' % int(trailing))
'''
03/12/2018 -- 21:48:21.432
'''
Python 2 time
module: https://docs.python.org/2/library/time.html
solved Can not convert 13 digit UNIX timestamp in python