They already have and we do. Approved by Sir Ted himself.
Here’s a question: How is the Sabbath determined? Does it follow 6 days of work? Or is it nor more than 6? The bible clearly says that it is to follow 6 days of work. What if you only work once in awhile? Can you have more sabbaths if you feel like it? Say, work three days then take a rest day on the fourth, early (rest, and only rest being the way we are commanded to keep the sabbath holy.) What if taking a rest day more often is even better?
Is the sabbath determined by local governments?
Is it determined by the local passing of time, or by counting sunsets and sunrises, or for each individual based on their personal-local passage of time? For example, if you fly around the world and you lose a day, then should you have a sabbath anyway based on the local calendar, after only 6 days, or should you wait a day even though you’ll then be out of step with the locals? If you travel the other way so that you get an extra day, then can you work 7 days straight and then have a sabbath on the 8th day?
What if you’re spending time on the international space station orbiting the earth 16 times in 24 hours? Do you still count the sunsets to determine days? Your days are only 90 minutes long, so you’d end up with short little sabbaths twice in a 24 hour period. If that’s wrong, then what is Sabbath based on when you’re in space? Jerusalem time as in the bible? Just pick a random time zone?
Even more ‘out there’, literally, what if you’re on a spaceship heading for Mars? No days. No sunsets. And then when you get to Mars, where the days are 25 hours long, then what? After a few years it seems you’d be running a sort of sabbath deficit after all those extra hours add up.
While all this sounds silly, in fact Sir Ted has taken a stand and indicated that Sabbath is based on your local personal experience of days passing. Using the Samoan example, where the local government decided that tomorrow would suddenly be the day after tomorrow, a correct thing for an Adventist to do is to start worshiping on Sunday, since the local’s personal experience was that Sunday would then be seven days after their last sabbath, which was on a Saturday. I doubt he thought very much about the implications of this idea.
And, how does Ted and the church know this didn’t happen before, sometime in the last 4000 years? What if we have the day wrong and what was once Saturn’s day is now Thor’s day?
In any case, the biblical sabbath is neither on Saturn’s day nor on Sun’s day, since neither of those days existed in bible times and the Israelites and Jews of Jesus day used a lunar calendar and worked out the sabbath in a completely different way, where the sabbath restarted each month on the first day of the month, on the first day of each lunar cycle, the new moon. In bible times, the sabbath was defined as falling on the new moon day, then every 7 days until the month restarted.
Since the lunar month is a little more than 29 1/2 days long, their calendar of months consisting of full days had months either 29 or 30 days long. And since the first day of each lunar month was a sabbath (indeed a high sabbath) there was no sabbath that could fit on a Roman calendar with weeks and land on the same day of the week each month, and it didn’t until the 4th century when the Jews changed how they calculated the sabbath under decree from the emperor.