Psyren
 

This recently showed up in American SJ manga magazine and I became a fan of it.

It's about people sent into the future where the world is a waste land and must fight in order to get back to the past and prevent the future.

It has a good plot line, I recommend it.

ending is disappointing, after 100 chps everything became bleach-like and too rushed :\
otherwise first 100 chp were amazing

LOL.

A time themed manga?

That sounds interesting.

yeah, it's similar to gantz.
and i like it more than gantz.. gantz is too dark for me

About Psyren you pretty good ... I think I'll read it manually