js的date获取当前时间

// 获取当前时间的 Date 对象
const now = new Date();

// 格式化输出当前时间
console.log(now.toLocaleString()); // 输出类似 "2023/10/05 下午3:45:30"
console.log(now.toISOString());   // 输出类似 "2023-10-05T15:45:30.000Z"

function formatDate(date) {
    const year = date.getFullYear();
    const month = String(date.getMonth() + 1).padStart(2, '0');
    const day = String(date.getDate()).padStart(2, '0');
    const hours = String(date.getHours()).padStart(2, '0');
    const minutes = String(date.getMinutes()).padStart(2, '0');
    const seconds = String(date.getSeconds()).padStart(2, '0');
    return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
}

console.log(formatDate(now)); // 输出类似 "2023-10-05 15:45:30"

console.log(now.toISOString()); // 输出 UTC 时间
console.log(now.toLocaleString('en-US', { timeZone: 'America/New_York' })); // 输出纽约时区的时间

const tomorrow = new Date(now);
tomorrow.setDate(tomorrow.getDate() + 1);
console.log(formatDate(tomorrow)); // 输出明天的日期