I have added a downloadable copy of my timetable planner MS Excel spreadsheet to my web page.

If you want to create your own timetable, you can enter a start time for each train, the running time between stations and the dwell time at each station and the spreadsheet will automatically generate a schedule.

Entry grid:

Time Grid:

 Copy and paste that into a TT formatting page and create a timetable for your railroad.

https://wnbranch.com/home/operations/timetable-and-train-order/