Simple UDP Packet Generation

#!/usr/bin/env python3

import socket
import struct
import time

host = "us.cooperlees.com"
port = 123
read_buffer = 1024
address = (host, port)
data = b'\x1b' + 47 * b'\0'
epoch = 2208988800

client = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
client.sendto(data, address)

data, address = client.recvfrom(read_buffer)
# Unpack the binary data and get the seconds out
t = struct.unpack("!12I", data)[10]
t -= epoch

print("NTP Time = %s" % time.ctime(t))