js

const d1 = Temporal.Duration.from({ hours: 1, minutes: 30 });
const d2 = Temporal.Duration.from({ hours: -1, minutes: -30 });
const d3 = Temporal.Duration.from({ hours: 0 });

console.log(d1.sign); // 1
console.log(d2.sign); // -1
console.log(d3.sign); // 0

console.log(d1.abs().sign); // 1
console.log(d2.abs().sign); // 1
console.log(d3.abs().sign); // 0

console.log(d1.negated().sign); // -1
console.log(d2.negated().sign); // 1
console.log(d3.negated().sign); // 0