Answer

Yes, “Chhat” and “Chhath” can mean two different things, depending on context.

• Chhat usually means roof / ceiling in Hindi/Gujarati usage.
• Chhath usually refers to the 6th day or to the festival called Chhath.

Explanation

In Jain context, if someone says “Chhath”, it may also refer to a form of tapasya/fasting connected with the sixth day or a fasting practice, depending on the tradition and local usage.

But “Chhat” without the final “h” sound is generally not the same word. It commonly means roof.

So the difference is mostly due to pronunciation and spelling:

• Chhat = छत = roof
• Chhath = छठ = sixth / sixth-day related usage

Takeaway

Yes, they are different: Chhat = roof, while Chhath = sixth day / festival / related religious usage depending on context.