Hmmmm... taking my fully maxed and equipped Sorcerer, he will be able to, in the frame of one Time Stop, cast the following( inclusive of ToB spells and abilities),
Assuming I am fighting a Dragon.
6 Magic Missiles, 8 Melf's Acid Arrows, 7 Flame Arrows, 1 Greater Malison, 6 Spider Spawns, 1 Spell Immunity

ivination, 6 Feebleminds, 1 True Sight, 1 Protection from Magical Weapons, 4 Ruby Rays of Reversal, 3 Finger of Deaths, 2 Abi-Dalzim's Horrid Wiltings, 4 Summon Planetars, 1 Spell Sequencer( 3 Flame Arrows), 1 Spell Trigger( 3 Lower Resistances), and 1 Chain Contingency( 3 Abi-Dalzim's Horrid Wiltings)
All for the price of one Project Image illusion... ...
Using Alson's technique, remove the CC-Bomb and multiply the rest four times over a period of 4 consecutive Time Stops.
I can actually cast more, but no point casting redundant spells.