Very very roughly, excluding bugs and extentions and "let's do it this way this time"s it's generally been 3 weeks of active event followed by one week of shopping. Until the Calendar came along at least, when that's active it's been 4 weeks of active event and shopping. Roughly.
Where and when this info has been posted has varied enormously, from timely posts in the forum, on the homepage and on both Twitter and FB all at once, down by degrees to a surprise removal with no warning at all.
The Football Dev Diary was released after the event had started and didn't include an end date. That was confirmed later and later still came info on the shop removal time.
With the second Event Calendar active both the event and the shop were removed at the same time and the dates, pulled from the homepage for the start date and multiple posts for the rest, were:
Start: 13.06.2014
End (event and shop): the early hours of the 15th of July 2014.
9th of April 2014 (after maintenance): Start
30th of April 2014 (with maintenance): Removal phase 1
7th of May 2014 (with maintenance): Removal phase 2
Removal phase 1 = Deactivation of event, event shop category remains // Removal phase 2 = Event shop category deactivated
This Easter had the same quest timing issues as 2013 but they were sort of just glossed over.
The Christmas 2013 event will start after the maintenance on 12th of December 2013.
The whole event will be turned off on 09th of January 2014.
With the first ever Event Calendar active Christmas 2013 was removed all in one go, event and shop.
Halloween 2013 Started 17th of October 2013, if it hadn't needed
changes "Removal phase 1" would have been 7th November and "Removal phase 2" 14th November.
It is our great pleasure to announce that the awesome and terrifying Halloween event will launch on October the 18th! It will then come to a close and rest in eternal slumber on November the 8th!
The exclusive Halloween content will be removed from the Shop two weeks after that. (November the 22nd)
The two weeks to shop were unusual.
Football 2012 started Wednesday 6th of June.
Later came more complete info on
removal timing.
The EC-Event has been running for some time now.
This event will be taken offline in two steps: first step on the 5th of July, second step on the 12th of July.
This one was a long one.
All clear? "Not really..." you say? Agreed.