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The mean tropical year for 2000 was 365 days, 5 hours, 48 minutes, 45.1875+-0.0001 secs (ie 365.2421896698 solar days)
There is a leap second planned for Jun 30 2012.
Jacquie, Phil doesn't allow for the lengthening day in his blog.
By some rough calculations, over the next 2600 years the day year will lengthen due to tidal friction from the Moon, there will then be approximately 365.2421896698 solar days in the year, and the Gregorian calendar will be a day off.
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