EDIT: By my calculations, even in Anchorage the average slew rate would be only two minutes a day, which seems practical enough to me.
With two dimensional time zones, each region could choose the strategy that works for them. If the slew rate is too great at peak, it could be smoothed.
Note that I am not suggesting that the hours in a day change (much), or length of an hour, or an attempt to keep both sunrise and sunset constant; sunrise would always be at seven, and sunset times would change. This way you maximize sunlight time while still going to bed at the same time each night. They would seem valuable for Alaaka.
To be honest, though, tus sounds a lot like an argument that humans are not naturally adapted to live in the arctic. Perhaps there no time system makes sense.
With two dimensional time zones, each region could choose the strategy that works for them. If the slew rate is too great at peak, it could be smoothed.
Note that I am not suggesting that the hours in a day change (much), or length of an hour, or an attempt to keep both sunrise and sunset constant; sunrise would always be at seven, and sunset times would change. This way you maximize sunlight time while still going to bed at the same time each night. They would seem valuable for Alaaka.
To be honest, though, tus sounds a lot like an argument that humans are not naturally adapted to live in the arctic. Perhaps there no time system makes sense.