Tournament Time Control Question

I just entered my first OTB tournament. The time control is listed as 40/2 SD/1. I believe the first part means I need to make 40 moves in 2 hours. I’m guessing the 2nd part means I have 1 hour to make the rest of my moves. Is this correct.

Brian

correct…

And your opponent has the same amount of time, so it could take up to 4 hours to get to move 40 if both players use virtually all their time. (That happens surprisingly often.)

Thanks for the replies.

FYI, I am playing at the Atlantic Open in Washington DC in August. Does anyone have good or bad reviews of this event?