Market of Time is an adventure map location that can be found in Titan's Winter, a map made with an early version of 埃拉西亚的光复.
The Market of Time went through several revisions before we scrapped it. I believe it was going to be a marketplace that appeared and disappeared on the map according to a schedule. -- George Ruof gr...@pacificnet.net Senior Programmer New World Computing
Source: http://archive.is/PyBjC
Greg Fulton, one of lead designers of HoMM3, answered the question about the market's functions:
Originally, the Market of Time was called ‘Brigadoon’. It would randomly appear after long periods of time, and for a Day, a Hero could purchase very high value artifacts and very cheap resources. It was ‘cut’ because it required new programming functionality, we were running out of development time, and I was worried players would ‘park’ a Hero at the destination and simply wait for the Market. Also, for the record, it was never a place where Heroes could unlearn Secondary Skills.