ntp.py

import socket
from struct import Struct


VERSION = 3
CLIENT_MODE = 3
LI = 0

NTP = Struct("!4c 3I 4Q I 16s")

def create_packet():
    LIVNMode = LI << 6 | VERSION << 3 | CLIENT_MODE
    return NTP.pack(chr(LIVNMode), '\0', '\0', '\0',
                    0, 0, 0,
                    0, 0, 0, 0,
                    0,
                    '\0'*16)


TARGET = '86.60.160.70'
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('127.0.0.1', 5005))
sock.sendto(create_packet(), (TARGET, 123))

reply, _ = sock.recvfrom(NTP.size)
print NTP.unpack(reply)