Any date/time on that list will work. Just make sure that the date doesn't fall on a Monday (will mess up the Joey calls, and means it'll take twice as long to advance the frame).
For PikaTimer, put the wanted seconds at 0 (so that you'll be able to enter the game at 0 seconds, like the date/time you choose has for the target time). Wanted delay is 3244, since that's the delay you have to hit to get the Latios you want.
As for the timers, that will be update once you have all the info it asks for in the top row in and you click generate (or something like that). Also, the delay you found earlier that was in the 400s or 500s (when you calibrated), was it odd or even? If even, leave the year as 2010. If odd, you'll need to change the year in seedt to time up or down by 1. Either one will work. Press generate after changing the year if you have to.