It does not. There are two distinct timestamps involved in this timestamp:
1543323061042
that is 2018-11-27 13:51:01.42 in my timezone, or 2018-11-27 12:51:01.42 UTC
these are the first 2 options displayed, converting the timestamp that is passed as a parameter to the ts workflow
1543323096449
that is 2018-11-27 13:51:36.449 in my timezone, or 2018-11-27 12:51:36.449 UTC
these are the following 4 options displayed, completely unrelated to the timestamp that is passed as a parameter
I understand how it can be confusing, because I took the screenshot only 35 seconds after having copied the timestamp used as an example...
Hopefully the various GIFs in the current README are clearer than this single screenshot? Let me know if I should clarify anything.