In the article StarWarsDotComBlogsLogoStacked Major Character Birth Years on Keeper of the HolocronLeland Chee's StarWars.com Blog (original site is defunct), Leland Chee established that the Invasion of Naboo started on 3:4:14 GrS (on the basis of a 12-month calendar). The comics Star Wars: Darth Maul set its story 6 months before the Invasion of Naboo. The events of Star Wars: Darth Maul can therefore be dated in 2:10 GrS. Per the reasoning here, 2:10 can be placed in the second half of 33 BBY.