how can i parse html with lxml

The problem is in the way you check for the bordR class. class is a multi-valued space-delimited attribute and you have to account for other classes on an element. In XPath you should be using "contains":

.//td[contains(@class, 'bordR')]

Or, even more reliable would be to add "concat" to the partial match check.

Once you've located the element you can use .text_content() method to get the complete text including all the children:

In [1]: from lxml.html import fromstring

In [2]: data = '<td class="name-td alLeft bordR">13.10.2016, Thu<span class="sp">|</span>17:00</td>'

In [3]: td = fromstring(data)

In [4]: print(td.text_content())
13.10.2016, Thu|17:00

To take a step further, you can load the date string into a datetime object:

In [5]: from datetime import datetime
In [6]: datetime.strptime(td.text_content(), "%d.%m.%Y, %a|%H:%M")
Out[6]: datetime.datetime(2016, 10, 13, 17, 0)

There's a method called .itertext that:

Iterates over the text content of a subtree.

So if you have an element td in a variable td, you can do this:

>>> text = list(td.itertext()); text
['13.10.2016, Thu', '|', '17:00']

>>> date, time = text[0].split(',')[0], text[-1]

>>> datetime_text = '{} at {}'.format(date, time)

>>> datetime_text
'13.10.2016 at 17:00'