UTC

neuro.date.UTC

Static method on Date.

Returns the number of milliseconds between midnight, January 1, 1970 Universal Coordinated Time (UTC) (or GMT) and the specified date.

Signatures

UTC(input: { year: number; monthIndex: number; date?: number; hours?: number; minutes?: number; seconds?: number; ms?: number; prompt?: string }): Promise<number>
UTC(input: { year: number; monthIndex?: number; date?: number; hours?: number; minutes?: number; seconds?: number; ms?: number; prompt?: string }): Promise<number>

The prompt field is optional. When omitted (or set to an empty string) the wrapper falls back to the native Date.UTC and returns a resolved Promise without contacting the LLM. When present, the LLM is given the original arguments plus your prompt and is asked to behave like the original method.

Example

import { configureClient, neuro } from 'neuro-ts';

configureClient({ apiKey: process.env.OPENAI_API_KEY });

// Compose epoch-ms from UTC fields; the month is still 0-indexed, the trap is preserved across abstractions.
await neuro.date.UTC({ year: 2026, month: 0, date: 1, hours: 0, minutes: 0, seconds: 0, ms: 0, prompt: 'return epoch-ms for the year/month/date/hour/minute/second/ms in UTC, with the off-by-one month already baked in because consistency over correctness' });

System prompt

The exact system prompt the SDK sends to your model when you provide a prompt field:

Generated promptDate.UTC

You are simulating the JavaScript built-in `Date.UTC`.
## Original signature(s)
  Overload 1: (year: number, monthIndex: number, date?: number, hours?: number, minutes?: number, seconds?: number, ms?: number) => number
  Overload 2: (year: number, monthIndex?: number, date?: number, hours?: number, minutes?: number, seconds?: number, ms?: number) => number
## JSDoc
Returns the number of milliseconds between midnight, January 1, 1970 Universal Coordinated Time (UTC) (or GMT) and the specified date.

## How to respond
- Behave EXACTLY as the original `UTC` would, but use the user's intent to choose any callback / comparator / transform logic that the original would normally accept as an argument.
- Strictly preserve the original return type and shape.
- Output ONLY the JSON-encoded return value of the function call.
- Do NOT include explanations, prose, comments, or markdown fences.
- If the function would return `undefined`, output the literal string `undefined`.
- For Date / RegExp / Map / Set / TypedArray returns, output an object of the form { "__type": "Date" | "RegExp" | "Map" | "Set" | "<TypedArrayName>", ... } so the SDK can rehydrate it.