Not if you had a hard drive. I can't find a decent video on YouTube showing how long booting from a hard drive took. Does anyone know of one? Otherwise I might have to get a pile of junk out of my loft and record a video myself. From memory, I'd say my A1200 with IDE disk took about 10 seconds to boot - from power on to sitting idle in the Workbench GUI.
An early Archimedes booted directly into the GUI from ROM and was even faster.