Sendai subway system

What time does the north -south subway line in Sendai open and close? ie. What time is the first and last train?

In general you can look this up on Hyperdia:-
http://www.hyperdia.com/

Just pick the two stations you are looking at and do a search. Once the results are displayed click "Interval timetable" below the train and it will show you all trains on that day.

Here's a direct link which should work
http://www.hyperdia.com/cgi/en/intervaltime.html?dep_node=SENDAI%28MIY...

In general start 5:50am or so, finish around midnight.

Enjoy your trip!

On the following Sendai subway route map (the upper section) you can click on different stations for a look at the running schedule. Note that the subway in Sendai is not of too much use for tourists/visitors. We had been to Sendai a couple of times and the only time we took the subway was to go to the Tomizawa Site Museum.

http://www.navi.kotsu.city.sendai.jp/dia/bustime/bus/index.cgi

This is official.
http://www.kotsu.city.sendai.jp/subway/guide/sendai/timetable.html
泉中央行 : for North end (16min/9sta)
富沢行 : for South end (12min/7sta)
平日 : Weekday (Mon-Fri)
click [印刷用ページ] print out

Operating very simple
all trains all stations stop
from N-end to S-end and S-end to N-end only.
no Exp or rapid.
http://www.kotsu.city.sendai.jp/subway/guide/sendai/index.html

but cannot purchase by Suica/PASMO or JR-Pass.

Thank you everyone, that is very helpful