js判断 时间

const now = new Date();
console.log(now); // 输出当前日期和时间

const timestamp = Date.now(); // 返回当前时间的时间戳（毫秒）
console.log(timestamp);

const now = new Date();
const year = now.getFullYear();
const month = String(now.getMonth() + 1).padStart(2, '0'); // 月份从0开始，需要加1
const day = String(now.getDate()).padStart(2, '0');
const hours = String(now.getHours()).padStart(2, '0');
const minutes = String(now.getMinutes()).padStart(2, '0');
const seconds = String(now.getSeconds()).padStart(2, '0');

const formattedTime = `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
console.log(formattedTime); // 输出格式化的时间字符串，例如 "2023-10-05 14:30:00"

function isTimeInRange(startTime, endTime) {
    const now = new Date();
    const start = new Date();
    const end = new Date();

    // 假设 startTime 和 endTime 是 "HH:mm" 格式的字符串
    [start.setHours(startTime.split(':')[0], startTime.split(':')[1], 0, 0),
     end.setHours(endTime.split(':')[0], endTime.split(':')[1], 0, 0)];

    return now >= start && now <= end;
}

console.log(isTimeInRange("09:00", "17:00")); // 判断当前时间是否在工作时间内

const now = new Date();
console.log(now.toLocaleString('en-US', { timeZone: 'UTC' })); // 输出UTC时间

function parseTime(timeStr) {
    const [hours, minutes] = timeStr.split(':').map(Number);
    return new Date();
    now.setHours(hours, minutes, 0, 0);
    return now;
}

const start = parseTime("09:00");
const end = parseTime("17:00");
const now = new Date();

console.log(now >= start && now <= end); // 判断当前时间是否在工作时间内