Feldon 
Normally, Game Updates are delayed for the EU server so that they are applied early the next morning rather than disrupting primetime gaming. However when a Game Update includes new content and new items, these updates are done simultaneously with the US patches so that everyone is on the same footing. This morning’s launch of the Summer Ethereal event only applied to the US server, with the EU server (Thurgadin) having to wait until a 9pm PDT / 6:00 CEDT update. Because today also launched a Double Ethereal Coin event, the result was a double whammy of the EU server being almost an entire day behind. The EQ2 team have recognized this and so will be extending the Double Ethereal Coin event (actually quadruple for All Access subscribers) for an additional day.
From Roshen on the EQ2 Forums:
We’ll be extending this first double Ethereal coin promo on Thurgadin. On Thurgadin, the first double Ethereal Coin event for members will be extended until 1:59PM Pacific time on Tuesday, June 14, 2016.
Well it was nice to give an extra bonus day on Thurgadin server because we had only one day to complete the first weekly quest instead of two. But did they have to push a 6 hours maintenane on that last day.