def printMinorMax(rdd, what):
    if what == 'min':
      val = rdd.min()
    elif what == 'max':
      val = rdd.max()
    val2 = datetime.fromtimestamp(val)
    print("\n#### Printing at %s" % datetime.today().strftime("%y-%m-%d %H:%M:%S") )
    print("### %s %s (epoch = %s)" % (what, val2.strftime("%y-%m-%d %H:%M:%S"), val))


  epochs.foreachRDD(lambda rdd: printMinorMax(rdd, 'min'))
  epochs.foreachRDD(lambda rdd: printMinorMax(rdd, 'max'))