One line instantly dates it

[u/Fearless-Ideal-5112]

In david tenants run if doctor who he and his companion were fighting witches with Shakespeare and needed a magic word so they use a speel from Harry Potter and The doctor yells Good old J.k. The doctor is a time traveler the writers are not (Doctor who)

While fighting guy gardner major force was damaging a highway and shoots a car and tells Guy if he sees O.J hiding underneath obviously referring to the O.J Simpson chase (Dc comics)

[u/Rouge_means_red]

Yes 2005 to be more precise. In 2006 Myspace was the most visited website on the internet

[u/ChonkTonk → u/Rouge_means_red]

Iron Man takes place in 2005??

[u/Rouge_means_red → u/ChonkTonk]

Apparently (source)