Deliver Us Tour was a concert tour by band Darkest Hour, taking place from late 2007, in support of their fifth studio album "Deliver Us" and finishing in December 2008. The tour started shortly after the Undoing Ruin Tour ended, earlier in December 2006.
Deliver Us Tour started in a month characterized by the onset of spring.
The tour started in late 2007, so that wasn't spring. Maybe I confused it by referencing a month instead of a just a season, which it might have known.