What are we talking about here? Sitting right seat in actual airplane?

What type of airplane, and what type of operation?

Or does this have to do with a simulator?

You can use time from a properly certified FTD or SIM for various approved FAA training purposes. You may even be able to log it as total time if you use the verbatim wording of the FAR's.

FTD/PCADT can be used for instrument training and currency.

Level D with visuals and motion can be used for T/O, landings and visual maneuvers also...pretty much everything you can do in a real airplane. Many such sims cannot do circle-to-land however...the visuals are not wide enough to allow you to look over your shoulder.

But as far as employers are concerned flight time / total time means real airplane time (ie it must have wings, engine(s), and actually fly in the air). Sim time cannot be used to meet employer hiring requirements unless they specifically state otherwise. About the only time this is commonly allowed is for instrument time, although some airlines want actual instrument experience.

I don't know of any US airlines which will accept ME time in a Sim.

I would not log that with your real airplane time, it will get you sent home early from an interview.

I hope you're not paying for this...if you are getting paid, and cannot get a job flying real airplanes, it might be worth doing but I wouldn't do it instead of real airplanes.