What is the differnece and importance of an Executive master's degree and a regular master's degree?

An executive master's degree is meant for people who don't have to take a lot of time off to pursue their EMBA. It is not more important than a regular masters agree. there is a masters program I heard about that is a accelerated MBA. It's got great reviews. I recently went through the process of searching for a program and this one made it to the top of the my list.