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In terms of the date on Earth, the Eleventh Doctor first met Amy Pond in 1996 ("The Eleventh Hour"), about nine years before the Tenth Doctor met Rose Tyler on New Year's Day 2005 ("The End of Time") -- which was itself two months before the Ninth Doctor met Rose at her workplace ("Rose") -- & about eleven years before the loss of Rose in 2007 ("Doomsday").

In terms of the Doctor's timeline, we don't know how long passed for him between the loss of Rose & the first encounter with Amy.