It was a poor attempt at humour, apologies. In reality, I just googled the answer myself, with the assumption that 1 year was the orbit of the Earth and the expectation that's what most people would do. You are of course correct that rounded to hours a full orbit is 1 yr + 6 hrs.
Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds. The time a planet takes to revolve around the sun is called a year.
Updating the answer to be more accurate would certainly help keep the spam bots at bay, but would it be too big a hurdle for the average user? I'm sure there a better question that's too tricky for bots to parse, but understandable for humans. Do you have any suggestions?