#!/usr/bin/python

import time, argparse

def convert(ctx):

	inputstr = str(ctx.Epoch)
	if len(inputstr) > 10:
		secs = inputstr[:10]
		msecs = inputstr[10:]
	else:
		secs = inputstr
		msecs = ""

	utc = time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(int(secs)))
	local = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(int(secs)))

	if msecs != "":
		utc = utc + "." + msecs
		local = local + "." + msecs

	utc = utc + " UTC"
	local = local + " " + time.tzname[time.localtime().tm_isdst]

	if ctx.utc == False and ctx.local == False:
		ctx.utc = ctx.local = True

	if ctx.utc == True:
		print utc
	if ctx.local == True:
		print local

if __name__ == "__main__":
	parser = argparse.ArgumentParser(description='convert Epoch time to a timestamp')

	parser.add_argument('Epoch', action="store", type=int, help='Epoch time in seconds or milliseconds')
	parser.add_argument('-u', '--utc', action="store_true", dest='utc', help='show timestamp in UTC time', default=False)
	parser.add_argument('-l', '--local', action="store_true", dest='local', help='show timestamp in local time', default=False)
	parser.add_argument('--version', action="version", version='%(prog)s 20140829.1')

	ctx = parser.parse_args()

	convert(ctx)