I know that there is a bug report system. But it looks like developers completely ignore this bug. It exists more than year. Your time limit can be suddenly reduced at any time. I saw it during real time games and turn based games. I saw it in different games (Race for the galaxy, Seasons, ...). More than half of my time penalties were due to this bug and several times players skip my turns. Often you can see it in Race for the galaxy. You end one phase and your time falls. Sometimes it falls below zero. Also your time can fall without any action. It's difficult to play games when you don't know how much time you can think.
There are several topics in bug report system
Metasite
http://en.boardgamearena.com/#!bug?id=4724
http://en.boardgamearena.com/#!bug?id=3911
http://en.boardgamearena.com/#!bug?id=3471
Race for the Galaxy
http://en.boardgamearena.com/#!bug?id=3527
http://en.boardgamearena.com/#!bug?id=4541
http://en.boardgamearena.com/#!bug?id=2623
http://en.boardgamearena.com/#!bug?id=1742
There are also other topics when players got inappropriate time penalties but in their cases it is probably to blame other bugs.
There are several topics in bug report system
Metasite
http://en.boardgamearena.com/#!bug?id=4724
http://en.boardgamearena.com/#!bug?id=3911
http://en.boardgamearena.com/#!bug?id=3471
Race for the Galaxy
http://en.boardgamearena.com/#!bug?id=3527
http://en.boardgamearena.com/#!bug?id=4541
http://en.boardgamearena.com/#!bug?id=2623
http://en.boardgamearena.com/#!bug?id=1742
There are also other topics when players got inappropriate time penalties but in their cases it is probably to blame other bugs.