Tokyo-Tsuruoka an 07 April 2016

I wish someone take away a question and since I already I thank.
I would like to go on the 7th of April Tokyo to Tsuruoka.
I have a JR Pass and to make it easier I'm doing the relationship of reserves to do.
To be sure of the time I look first at the Hyperdia and then Jorudan site.
It turns out that in Jorudan I find Tokyo 9: 12pm (Toki 311) to Niigata and then Inaho 3 for Tsuruoka, reaching the 12: 45hs.
but this option does not exist Hyperdia !!!! I can give any hours ... and Inaho 3 does not appear !! because?
Thank you so

Hyperdia currently displays correctly only results for the time frame from December 5, 2015 to March 25, 2016. For dates beyond March 25, it may produce strange results. That's why.

Jorudan, on the other hand, simply applies the current timetable to dates in the far future.

The timetable for April will not be published for some more weeks. But I think it is unlikely that there will be major changes to the Tokyo-Tsuruoka timetable.

Hallo Uji
ah thank you very much to heart, then I'll do it in February.
Have a very happy year 2016. Thanks for the quick response.