Mothers day on Thursday?

Last nights "mothers day" dinner was a great success with a full house and great music by our local jazz trio. The only thing wrong was the name of the event. I was told it was to celebrate mothers day which in Panama falls on December 8th. Then I was told it was for the U.S. mothers day, but that falls on Sunday. Last night I though we had it figured out when  I was told it was to celebrate the International day of women, but in checking this morning I find that falls on March 8th which was two months back and we forgot to celebrate it. 
In any case, a good time was has by everyone and the champaign and roses made all the ladies happy and giggly. It just goes to show that in Panama, nobody really knows anything for sure, but everyone is happy. Now, when is the international day of Man?