After 5 clothes, often known as cocktail attire, is intended for semiformal occasions outside the office, such as dinner dates and parties. After 5 o’clock, men should wear slacks, a button-down shirt, a blazer, and a tie, if desired.
There is some overlap between work clothes and after-work attire, but men dressing for an after-work event can be more daring with their colour and pattern choices. Contrasting ties, vests, and other accessories are permissible. A jacket is not essential after 5 p.m., however it is strongly recommended, especially for nighttime events.