According to traditional Jain belief, Acharya Haribhadra Suri was earlier placed in the 6th century CE, but modern Jain scholars now generally place him in the 8th century CE (around 700–770 CE).

So:

• Traditional view (old Jain gurvavali etc.):

– Haribhadra Suri ji = approx. 6th century CE (Vikram Samvat 585 as his nirvana is often mentioned).

• Modern researched view (based on internal evidence of his books and references to other philosophers):

– Haribhadra Suri ji is understood to have lived later, in about the 8th century CE, not the 6th.

In short: If you ask “Did he belong to the 6th century CE?” – traditionally yes, but according to present scholarly understanding, he is more accurately placed in the 8th century CE.

You can read a simple Jain-oriented explanation here: “Which Jain acharya rachna 1444 granth” “Jain Story Shri Haribhadrasuri”