So I'm jumping into speed running and here's my layout.

First of all, I'm on a Mac

PS4 HDMI into 4K Ultra HD USB3.0 HDMI Video Capture. HDCP 2.2 EDID

From there the signal is sent into OBS and streamed and recorded there.

I need a reliable timer to use. Which ones do you suggest?

Also, I wanna make absolutely sure before I tackle this. This is going to take me more than 24 hours to speed run. I'm 41, I can't do all nighters like that anymore. Will pausing the timer but not the recording so I can sleep, use the bathroom. I'll be eating on stream etc.