United Kingdom, June 17 -- Mariah Carey still refuses to acknowledge birthdays and doesn't pay attention to clocks.

The 56-year-old superstar singer - who was born on March 27, 1969, in Huntington, New York - celebrates anniversaries, but she doesn't mark her birthday each March - and even insists she doesn't have one.

When asked on Capital FM if it is true she doesn't acknowledge the passing of time, she said: "That is true."

Mariah also admitted she doesn't pay attention to clocks.

Capital FM DJ Sian Welby said to her: "So no clocks? Just not into that?"

Mariah replied: "Yeah. No, just let it go.

"I don't have a birthday, no.

"Anniversaries, yes."

Mariah admitted if she is planning a meeting with someone she has one of her assoc...