Used for events after 5 pm. Before this time, 'morning dress' might be more appropriate. The invitation stated 'black tie', so the event likely starts in the evening.
Pro Tip 2/3
Invitation Clue
Invitations may hint at the formality by mentioning 'black tie', indicating high formal attire is expected. The gala's invite mentions 'black tie'—time to rent a tuxedo.
Pro Tip 3/3
Cultural Variation
Meaning can differ culturally. In some countries, a dark suit can substitute for a tuxedo. In his country, 'black tie' can mean a dark, formal suit instead of a full tuxedo.