def seconds_to_str(value):
    """Convert seconds to a simple simple string describing the amount of time."""
    if value < 60:
        return '%s seconds' % value
    elif value < 3600:
        return '%s minutes' % (value / 60)
    else:
        return '%s hours and %s minutes' % (value / 3600, value % 3600 / 60)
