Dec 5 10:00 am all day
Haskell is certainly used a lot in the industry, but not as commonly as C# or Java. So if you just want to learn it to help you get a job, it might actually be a waste of time. A better reason to learn Haskell is to get you familiar with functional style approach. This will happen at a much faster rate with Haskell than with another functional language like F# or Scala.