Cancelled

Cancelled
 

Our class takes place every night at 9 pm. Now it's 4 pm. The announcement that the class tonight would not take place was made at 8 am. Are they all correct when I say them now?

-The class tonight is cancelled. (cancelled being an adjective)
-The class tonight has been cancelled. (linking the act of cancelling in the past to the present, so the present perfect)
-The class tonight was cancelled. (the announcement of cancellation or the act of cancelling it was made in the past, so the simple past tense)

Yes, all are correct.

Thank you.