I have seen flights come into the small airport in Toronto Ontario after 11 p.m. In tracking flights with flightaware it states arrival will be after 11 p.m. After landing at 11:02 or 11:04 the time of arrival is posted as 10:59. This is almost each and everytime even though I saw the plane(s) in question arrive at 11:04 or 11:03. Yesterday a plane landed at 11:26 (I witnessed this) yet it is reported as having landed at 11:13 or thereabouts. Clearly, the plane was still in flight, even according to its own track log.
My question: how is the final time calculated if in fact at 10:59 the plane is still in the air. Is there a five minute margin of error, say? How does Flightaware get this information?
Perhaps this question has been asked or it is in the FAQs (and I can’t find it) but I am very new to this website and I am curious and wish I understood it all better, so please forgive me.