How not to see timezone on a xlabel?

Hello,

As shown in this screenshot http://img195.imageshack.us/img195/9186/timeseries.png I am trying to plot a timeseries using mpl. There is a minute detail that bothers me. I couldn’t figure out how to hide the timezone information on my xlabel (here is CST)

After loading the data, I use mpl’s num2data funtion to create datetime objects from second-from-number elements. I get a nice looking figure with autofmt_xdate() but I do not know what should I do to hide the extra unneeded information.

In [2]: time_adj = array([num2date(1 + int(Time[i])/86400.0) for i in range(len(Time))])

In [3]: len time_adj
------> len(time_adj)
Out[3]: 3763

In [4]: time_adj[0]
Out[4]: datetime.datetime(1, 1, 1, 13, 13, 46, tzinfo=)

In [5]: fig = figure()

In [6]: ax1 = fig.add_subplot(111)

In [7]: ax1.plot(time_adj, dccnConc)
Out[7]: [<matplotlib.lines.Line2D object at 0xaed078c>]

In [8]: fig.autofmt_xdate()

Thanks,
Gökhan