There will also be a two-minute silence held in Liverpool, Nottingham and Sheffield at 1506 BST which will end when all civic, cathedral and church bells are rung 96 times.
"I was in Spain at the time and I didn't realise how serious the actual situation was - I then heard the news and soon realised," added Benitez, who was appointed manager of the club in the summer of 2004.
"Since I've been at Liverpool I've learned a lot more. I've learned what Hillsborough means to people."
Hillsborough remembered - Jamie Carragher
Liverpool defender Jamie Carragher echoed his manager's sentiments.
"It's essential that we don't forget Hillsborough," said Carragher.
"I think it changed the face of football. I hope it will never happen again."
He added: "I say to the families that they have to keep believing and keep fighting."
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