Sample Python server to return formatted data for GeekTool.

server.py

#!/usr/bin/env python

#
# Run this in the background. Poll using netcat:
#
#     $ nc localhost 5005
#
# Made for use with GeekTool. http://projects.tynsoe.org/en/geektool/
#

import pytz
import socket

from datetime import datetime

TCP_IP = '127.0.0.1'
TCP_PORT = 5005

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((TCP_IP, TCP_PORT))
s.listen(1)

while 1:
    try:
        conn, addr = s.accept()

        d = datetime.now(pytz.timezone('US/Eastern'))
        conn.send(d.strftime("%H:%M %Z") + "\n")

        d = datetime.now(pytz.utc)
        conn.send(d.strftime("%H:%M %Z"))

        conn.close()
    except KeyboardInterrupt:
        break

s.close()