This Calendar is made and updated by fellow members of the Star Trek Online Community.  That being said, because it is not an "official" calendar any events that are on this calendar are subject to change and some may not be completly accurate.  Some of these events are just very good assumptions that players have put together from forum posts from the developer such as the launch of Season 6 (Note: these types of guesses are clearly marked).  But all in all this calendar has am extremely good track record (almost 100% {perfect for as long I have used it not sure about the past}) so I use it to help make gauge what is coming up and I hope it helps you also.  Test it out and if it doesn't seem to help anyone we can always take it down... Enjoy