I know in the past it could easily take a week or more, but it seams the last couple of systems updates have reduced the time it take to get the EB accounts updated with the last flights.
Over the last 12 months, almost all my SK operated flights, has been on my account within 2 business days after landing. My flights in this time frame have been half short haul, half long haul, and spread over 4 primary destinations.