My time was spent over several years from the time that Jakarta was called Batavia. Mostly with commercial companies, sometimes for the oil industry. Egypt, Bahrain, Iran, Saudi Arabia, Yemen, Pakistan, Malaysia, Indonesia, Phillipines and a few more. Each time was only for a few days, but if I had to encapsulate it, I would say six months to a year. Yes, I have spent some time in the military too. Does that make it irrellevant?
Good enough?