@Arci:
He is right (at least regarding Olympus). This is not the first time the date stated for the next jump of Olympus was changed- it seems to "jump" more often than Olympus itself.
Some days prior to the first jump (on September 20) the date stated for the jump suddenly switched to September 19 (which would have been correct, btw), which caused some confusion in our planning but was changed back to September 20 only 4 days prior to that date.
The in-game info originally stated that Olympus will change its location after 10 days, Now the in-game rules were changed and now state 11 days between the jumps:
Those "jumping" dates for the jumps are confusing, not only for the leading alliance but for all players. Additionally, the rules of a running world should not be changed midgame. The quoted info originally clearly stated 10 days between the jumps. Since Olympus spawned on September 9, we all expected the next jumps for September 19 and 29. Instead the first jump (after some confusion as described above) occurred on September 20, and now the second jump is announced for October 1 - only because the rules were changed secretly/without any notice (from 10 days to 11 days between the jumps).
I understand that other alliances might be especially irritated by that change. A holding time of 27 days combined with jumps every 10 days meant that any alliance must land their CS and complete their conquest of Olympus within the first 24 hours of the iteration - in order to gain the victory with only 3 conquests. With 11 days between the jumps, they don´t have to watch the clock so closely, and it is more likely that 3 conquests will suffice.