The last dating event I tried was after work and it was exhausting for me. I might have connected slightly with a couple of people (maybe?), but I had to get out of there because I was so tired.
I struggle to do normal working hours, I don't have the stamina. I can't fathom how people working 38 hour weeks (or unpaid overtime) meet people.
EDIT: Currently off work :P Quit my job, best decision ever. Right now sitting in a chair in the sun, contemplating a nap.