The range-separated CAM-B3LYP functional 47 also performs well for this data set but engenders more significant errors for larger molecules. This is because CAM-B3LYP incorporates only 80% Hartree-Fock exchange at long range. TD-PBE0 and TD-B3LYP errors for CT excitations are limited only by the size of the molecule and are more dramatic in large molecules, solvated systems, and aggregates. Whereas the data set examined in Fig. consists of CT transitions, Fig. plots TD-DFT errors for a set of valence transitions. (See Table for the complete data set.) As a baseline comparison for GGAs and global hybrid functionals, we include TD-PBE and TD-PBE0 results alongside TD-LRC-ωPBE with ω IE or ω GDD . Significant and systematic underestimation of excitation energies using GGA functionals (including but not limited to PBE) is a common side effect of incorrect asymptotic behavior of υ xc (r). Global hybrid functionals such as PBE0 push the excitations energies higher, resulting in typical unsigned errors of 0.2-0.3 eV for localized excitations, which is smaller than typical errors for CT transitions. These trends are reflected in the TD-PBE and TD-PBE0 data in Fig. .