TIMELINE:

Here's just a GUESS of how I think that Teen Titans (the original series not the one currently running) and Young Justice work in the same timeline! Again it's a rough guess! If you want I can go in more detail in following chapters, but up to you! For now I will use Dick Grayson/Robin as the focal point between the two shows

We start with Young Justice:

Beginning of Season 1: Dick is stated as 13

During Season 1: Dick's birthday

End of Season 1: Dick is 14

Now we go to Teen Titans:

age is never stated; although records from the creators, hints in tie in comics and fans guess themselves the ages are:

Robin, Raven and Starfire are 15

Cyborg is 17

Beast Boy and Terra are 14

Season 1: Dick is 14 (assumed)

Season 2: Starfire goes to the future in a fight with Warp and discovers the Teen Titans have disbanded and they are adults. Twenty years have passed and Nightwing is shown, possibly mid 30s as he is able bodied

Season3: ages are not discussed

Season 4: Raven's 16th birthday comes, causing an almost apocalypse

Season 5: fans theorize ages that are around 15-17 range

Back to Young Justice:

Beginning Season 2: Dick is NightWing, still a part of Young Justice and not in the League

During Season 2: Other teams have seemed to crop up, the Runaways for example and Young Justice has grown massively. Dick is according to the Young Justice Wiki is 19

End of Season 2: Dick leaves the Team

We have finished

Ok so I think THINK that's pretty plausible, if this gets popular I'll post Beast Booy's involvement and Kid Flash since they also appear in both series

REVIEW AND COMMENT THANKS!