Duration of line dance lessons at Saratoga Springs?

[DaisyDuck001]

Hi, the activities calendar for Saratoga Springs currently says they have line dance lessons on Monday evenings at 7PM. (I understand this could be different in the new month). Anyway, I'm trying to plan my evening, dinner, etc. Does anyone know, does the lesson take half an hour, a whole hour, or how long?

Thank you in advance.