时间常用
作者:互联网
获取24小时时间
let time=new Date().toLocaleString('chinese',{hour12:false});
获取当天时间
var now = new Date(); var year = now.getFullYear(); //得到年份 var month = now.getMonth(); //得到月份 var date = now.getDate(); //得到日期 var day = now.getDay(); //得到周几 var hour = now.getHours(); //得到小时 var minu = now.getMinutes(); //得到分钟 var sec = now.getSeconds(); //得到秒 month = month + 1; if (month < 10) month = "0" + month; if (date < 10) date = "0" + date; if (hour < 10) hour = "0" + hour; if (minu < 10) minu = "0" + minu; if (sec < 10) sec = "0" + sec; var time = ""; time = year + "-" + month + "-" + date + " " + hour + ":" + minu + ":" + sec;
当前日期前加一天
<script type="text/javascript"> function addDay(datetime, days) { var old_time = new Date(datetime.replace(/-/g, "/")); //替换字符,js不认2013-01- 31,只认2013/01/31 var fd = new Date(old_time.valueOf() + days * 24 * 60 * 60 * 1000); //日期加上指 定的天数 var new_time = fd.getFullYear() + "-"; var month = fd.getMonth() + 1; if (month >= 10) { new_time += month + "-"; } else { //在小于10的月份上补0 new_time += "0" + month + "-"; } if (fd.getDate() >= 10) { new_time += fd.getDate(); } else { //在小于10的日期上补0 new_time += "0" + fd.getDate(); } return new_time; //输出格式:2013-01-02 } alert(addDay("2013-11-12", 1)); //弹出值:2013-11-13 </script>
日期大小比
var startDate1 ='2012-12-30 00:00:00' ; let start1 = new Date(startDate1.replace(/\-/g, "\/")); var startDate2 ='2012-12-30 13:13:02' ; let start2 = new Date(startDate2.replace(/\-/g, "\/")); start2 .getTime();// 获取时间戳 单位毫秒 console.log(start1,start1<start2) // Sun Dec 30 2012 00:00:00 GMT+0800 (中国标准时间) true
秒数转化时分秒
var theTime = params.row.alarmDuration; // 秒 var middle = 0; // 分 var hour = 0; // 小时 //parseInt() 函数可解析一个字符串,并返回一个整数 if (theTime > 60) { middle = parseInt(theTime / 60); theTime = parseInt(theTime % 60); if (middle > 60) { hour = parseInt(middle / 60); middle = parseInt(middle % 60); } } var result = "" + parseInt(theTime) + "秒"; if (middle > 0) { result = "" + parseInt(middle) + "分" + result; } if (hour > 0) { result = "" + parseInt(hour) + "小时" + result; } return h("span", result);
标签:10,常用,hour,month,时间,time,var,new 来源: https://www.cnblogs.com/cai-xin/p/16135910.html