2008-05-27
From Geohashing
The coordinates for Tuesday, May 27, 2008 are:
East of -30°: 0.12536718896775, 0.577110915397159 West of -30°: Available Tuesday, May 27 at 9:30am ET
These coordinates became available east of -30° on Friday, May 23 by combination of the Dow's Memorial Day holiday1 and the new 30W Time Zone Rule, which posits that Tuesday's open would come too late in the day for eastern longitudes.