Function roundTiesAwayFromZero

packages/effect/src/Duration.ts:38–39

(input: number)

const bigint1e9 = BigInt(1_000_000_000)

const roundTiesAwayFromZero = (input: number): bigint =>
  BigInt(input < 0 ? Math.ceil(input - 0.5) : Math.floor(input + 0.5))

const roundMillisToNanos = (millis: number): bigint => roundTiesAwayFromZero(millis * 1_000_000)