Feelin' kinda spica

You feel like you don't want to work/do your job between the morning and the afternoon (applies to freelance. ex: An artist.)
So you want to sleep and wake up at midnight to finish your work

Summary - You are more motivated to work at midnight, generally not a time a human usually would want to work (Unless you're doing night shifts)

I'm "feelin' kinda spica" right now, I'll do it later tonight.