客户端JavaScript操作时间_外链式js客户端时间-优快云博客

本文链接：https://blog.youkuaiyun.com/tian_yan_jing/article/details/7860358

<html>

<body>
<div id="time"></div>
<script>
setInterval("getClientTime()",1000); 
/**
 * 返回客户端时间
 */
function getClientTime(){
	var date = new Date();
	// 年、月、日
	var year = date.getYear();
	var month = date.getMonth()+1;
	var day = date.getDate();
	// 时、分、秒
	var hour = date.getHours();       
	var minute = date.getMinutes();       
	var second = date.getSeconds();
	
	var dtime = year + "-" + formatNumber(month) + "-" + formatNumber(day);
	dtime = dtime + " ";
	dtime = dtime + formatNumber(hour) + ":" + formatNumber(minute) + ":" + formatNumber(second);
	var obj = document.getElementById("time");
	var weekday = getWeekDay(date.getDay());
	obj.innerHTML = dtime + "  " + weekday;
	return dtime;
}

/**
* 格式化数字2--02，1--01
*/
function formatNumber(value){
	if (value >= 0 && value < 10) {
		value = "0" + value;
	}
	return value;
}

/**
* 返回星期名称
*/
function getWeekDay(weekday){
	var weekdayName;
	switch(weekday){           
		case 0 : weekdayName = "星期日"; break;           
		case 1 : weekdayName = "星期一"; break;           
		case 2 : weekdayName = "星期二"; break;           
		case 3 : weekdayName = "星期三"; break;          
		case 4 : weekdayName = "星期四"; break;          
		case 5 : weekdayName = "星期五"; break;          
		case 6 : weekdayName = "星期六"; break;  
	}
	return weekdayName;
}
</script>
</body>
</html>