js時間與時間戳之間的轉換操作，返回天、小時、分，全家桶

1.將時間戳轉換成時間

var formatDate = function(d) { 
var now = new Date(d);
var year = now.getFullYear();
var month = now.getMonth() + 1;
var date = now.getDate();
var hour = now.getHours();
var minute = now.getMinutes();
var second = now.getSeconds();
return year + "-" + month + "-" + date + " " + hour + ":" + minute + ":" + second;
}

2.將一個時間戳減去當前時間戳來得到秒數

var dateDifference=function(expire_time){//返回秒數
var timestamp = Date.parse(new Date());//當前時間
timestamp=timestamp/1000;
expire_time=parseInt(expire_time/1000);//過期時間
return expire_time-timestamp;
}

3.輸入秒數返回 天、時、分

var dateCalculation = function(second) { //返回天、時、分

if (second > 0) {

var day = 0;

var hour = 0;

var minute = 0;

var data = {};

minute = Math.floor(second / (60))

if (parseInt(minute) > 60) {

hour = parseInt(minute / 60);

minute %= 60; //算出有多分鍾

}

if (parseInt(hour) > 24) {

day = parseInt(hour / 24);

hour %= 24; //算出有多分鍾

}

data.day = day;

data.hour = hour;

data.minute = minute;

return data;

}

}

4. //獲取今天日期

var Today = function(d = new Date()) { //獲取今天日期

var now = d;

var year = now.getFullYear();

var month = now.getMonth() + 1;

var date = now.getDate();

var hour = now.getHours();

var minute = now.getMinutes();

var second = now.getSeconds();

return year + "-" + month + "-" + date;

}

5.//獲取明天日期

var Tomorrow = function(d = new Date()) { //獲取明天日期

var now = d;

var year = now.getFullYear();

var month = now.getMonth() + 1;

var date = now.getDate() + 1;

var hour = now.getHours();

var minute = now.getMinutes();

var second = now.getSeconds();

return year + "-" + month + "-" + date;

}