HDateTime.toString() returns incorrect value when timezone is different than system time

[kianj2]

HDateTime.toString() displays the correct timezone. However, it displays the wrong time. Consider the following code snippet

import { HDateTime } from "haystack-core";

const now = new Date().toISOString();

// 2023-10-12T23:53:04.861Z
console.log(now);

const value = HDateTime.make({
  val: now,
  tz: "America/New_York"
}).toString();

// 10/12/2023, 4:53:04 PM America/New_York
console.log(value);

The string value of "10/12/2023, 4:53:04 PM" is incorrect. The correct string should be "10/12/2023, 7:53:04 PM". I believe this is because toString() uses Date.toLocaleString(), which I am assuming is creating a locale string for the local system time.

haystack-core/src/core/HDateTime.ts

Line 263 in 88b9861

public toString(): string {

public toString(): string {
  return (
    this.date.toLocaleString() +
    (this.timezone ? ` ${this.timezone}` : '')
  )
}