The heiress, 36, got engaged last week to actor Zylka, 32, after he proposed while the couple was skiing in Aspen, Colorado.
The pair were asked by Mark Wright in an interview for “Extra” TV at the Golden Globes when the wedding might be.
Hilton replied “Soon.”
Zylka added: “We’re going to have dinner with our parents to plan it.”
The businesswoman revealed to the former “Towie” star she had big wedding plans.
She said: “For my 21st birthday I had five parties, so maybe for the wedding I’ll have a European one, an American one, one for everyone around the world.”
Hilton and Zylka looked loved-up as the attended HBO’s Golden Globes after-party at the weekend.
The blonde beauty looked stunning in a black, lacy full-length dress with sheer panels.
She was also sporting a chic blonde bob for the evening with her husband-to-be.
Wright also asked the newly-engaged couple why each other was “the one.”
Zylka explained: “She’s my best friend, she’s the most gorgeous thing on the planet — as you can see — and she’s one of the strongest women that I know.”
The couple’s appearance at the glamorous event comes as Hilton writhes in a see-through slip and plays with her pet dog for a raunchy new LOVE Advent Calendar video.
She has arranged extra security for her $2 million engagement ring after fears it could be stolen from her.
Since becoming engaged last week the bride-to-be has been showing off the huge rock on social media and wore it out on a date night in LA.