If the timetables are to be changed every March and November, the calendar tool providers will make it easy for people to set up an automatic time slot change.
The point is, for a lot of people (if not most of all), the timetables don't need to be changed. If my working hour is 11am ~ 12pm, DST or no, I will see daylight when going to work and not when coming back. 4am~2pm is likewise.
Your solution sounds like fixing the Y2K problem without updating the software to use 4 or more digit variables for years, rather by making everyone living the 20th century over and over again.
"Easy", "automatic", bah humbug! I take it you have never seen the hoops any date library needs to jump through because of DST. (An example: your scheduled task is at 2:30. When does it run on DST change, and how many times? 0? 1? 2? Guess what: no right answer, just a lot of wrong ones. And that's one of the simplest examples.)
The point is, for a lot of people (if not most of all), the timetables don't need to be changed. If my working hour is 11am ~ 12pm, DST or no, I will see daylight when going to work and not when coming back. 4am~2pm is likewise.
Your solution sounds like fixing the Y2K problem without updating the software to use 4 or more digit variables for years, rather by making everyone living the 20th century over and over again.