sweeeet! Can't wait to see you in there!
Users have 24 hours to enter from when the game is started (we started the game about 12 hours ago from the time this comment is posted)... so 12 hours left to join the game.
The game ends 7 days after the game is started (so 6 days and 12 hours from now, the first game will end and the winners chosen based on their ROI at that time).
Hope that helps :) happy "trading"