Board Thread:General Discussion/@comment-220364-20140405150621/@comment-220364-20140405153832

I'm inclined to simplify the bulk of it down to: I'd also argue that the New 52 appearances should be "Prime Earth", but the would be for the entire Legion, not just this character.
 * Appearance prior to Crisis (1986) are "Pre-Zero Hour"
 * Appearance between Crisis (1986) and Zero-Hour (1994) using Lar Gand from the 30th century are "Pre-Zero Hour"
 * Appearance between Crisis (1986) and Zero-Hour (1994) using Lar Gand from the 20th century are "Post-Zero Hour"
 * Appearances between Zero-Hour (1994) and (2004) are "Post-Zero Hour"
 * Appearances between Teen Titans/Legion Special Vol 1 1 (2004) and (2009) are "Earth-Prime"
 * Appearances from 2009 Flashpoint (2011) are "New Earth"