feat: add validation for timezones and date string with detailed error #21

	name: Node.js CI

	on:
	pull_request:
	push:
	branches:
	- main

	jobs:
	build-linux:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	node-version: [20]

	steps:
	- uses: actions/checkout@v4

	- name: Set up Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@v4
	with:
	node-version: ${{ matrix.node-version }}
	cache: 'npm'

	- name: Install dependencies
	run: npm install

	- name: Check formatting
	run: npm run ci

	- name: Run tests
	run: npm test

	- name: Build
	run: npm run build

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