Just wondered: How long did the Great Modron March take to get around the Great Wheel in your campaigns?
The adventure is quite vague about it (month to decades) but if you want to run several of the adventures with one and the same group and don't like big time leaps, it seems you have to rush things a little bit.
I my campaign it will take about 1 year. I'm not really happy with that solution though.
I generally assume it took a year, based purely on the assumption that adventures correspond to their real-world publishing times in the Planescape timeline. But obviously, it should take as long as it needs to in your campaign. This modron march is very unstandard, since Tenebrous is deliberately rushing things. The Last Word is slowly destroying Tenebrous, so it can't afford to be as patient as an eternal being like Primus would be.
How long do you think it should take and why?