Overseas is infrequent, but trips would last 2 weeks. The nature of the business is longer term projects so we wouldn't got for a day. Would a sales guy do a 1 day mtg 24 hours away? India would be the main place, and I'm sure they'd find a local salesperson. I almost went to the UK for a week of meetings, but that got canceled.
I bill 40 hours in a week, and travel time has always been my own, even when I was an IC.
Ok... your scope and criteria is quite different and more big company thinking where costs are more easily put into overhead than small company thinking where costs are more directly allocated to projects (to some extent). Lets say you have a company that offers services worldwide but there are only say 20 employees. Let’s say that the work the company does is troubleshooting in nature where when one gets to a site somewhere on the planet, it might take them a few hours to sort out the problem or a few weeks. I think the only sensible approach at that point is that when someone goes to a jobsite and the project is billed on a time and expense basis, then one bills from the time the employee leaves until they return (at least all the time they are traveling and working on the jobsite (minimum 8 hour per day). Competitive pressures might force one to take a different approach but when a company hires a specialist to solve a problem, they typically expect to pay for the travel time as well since that is part of the requirements of the project..... at least that has been my experience.