HTML部分：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<input type="button" name="time1" id="time" onclick="setDay()" style="width: 30px; height: 30px;" />
<input type="text" name="DATA_6" id="days" style="height: 30px ;" />
<input type="text" value="2018-2-28" id="beginDate" />
<input type="text" value="2018-3-2" id="endDate" />
<input type="text" value="9:13:15" id="beginTime"/>
<input type="text" value="11:13:15" id="endtime" />
JS部分：
<script>
var beginDate;
var endDate;
var beginTime;
var endTime;
//获取前段时间参数
function getTimeParam() {
beginDate = document.getElementById("beginDate").value;
endDate = document.getElementById("endDate").value;
beginTime = document.getElementById("beginTime").value;
endTime = document.getElementById("endtime").value;
//格式化日期参数
beginDate = beginDate.replace(/-/g, "/");
endDate = endDate.replace(/-/g, "/");
}
function setDay() {
//获取前端参数
getTimeParam();
//校验时间是否合法
var validTime = isValidDateTime(beginDate, endDate, beginTime, endTime);
if(validTime) {
setDays(beginDate, endDate, beginTime, endTime)
} else {
alert("结束时间必须大于开始时间")
}
}
function setDays(beginDate, endDate, beginTime, endTime) {
document.getElementById("days").value = calculateDay(beginDate, endDate, beginTime, endTime);
}
function isValidDateTime(beginDate, endDate, beginTime, endTime) {
var bDateTime = new Date(beginDate + " " + beginTime);
var eDateTime = new Date(endDate + " " + endTime);
if(eDateTime <= bDateTime.getTime()) {
return false;
} else {
return true;
}
}
function calculateDay(beginDate, endDate, beginTime, endTime) {
var hour = 60 * 60 * 1000;
var bTimeStr = beginTime.split(":");
var eTimeStr = endTime.split(":");
var bDate = new Date(beginDate);
var eDate = new Date(endDate);
var bTime = bTimeStr[0] * hour + bTimeStr[1] * 60 * 1000 + bTimeStr[2] * 1000;
var eTime = eTimeStr[0] * hour + eTimeStr[1] * 60 * 1000 + eTimeStr[2] * 1000;
var days = 0.0;
var half = 0.5;
var allDay = 1.0;
var AM_UpHour = 8 * hour;
var AM_DownHour = 12 * hour;
var PM_UpHour = 13.5 * hour;
var PM_DownHour = 17.5 * hour;
//相隔天数
var n = (eDate.getTime() - bDate.getTime()) / (hour * 24);
if(n > 1) {
days = n - 1;
}
//如果是同一天
if(beginDate == endDate) {
if(bTime < AM_DownHour) {
if(eTime <= PM_UpHour) {
days += half;
} else {
days += allDay;
}
} else {
days += allDay;
}
}
//不是同一天
else {
//计算开始的那一天的
//如果开始时间<早上下班时间+1.0
if(bTime < AM_DownHour) {
days += allDay;
}
//如果是下午开始
else {
days += half;
}
//计算结束的那一天
//如果是早上结束+0.5
if(eTime <= PM_UpHour) {
days += half;
}
//如果是下午结束+1.0
else {
days += allDay;
}
}
return days;
}
</script>
</body>
</html>
