IOSbug：！！！
1：UTC转24小时制时间--年月日 时分
function utc2beijing(utc_datetime) { // UTC转时间
function formatFunc(str) { //格式化显示
return str > 9 ? str : '0' + str
}
var UTCDateString= utc_datetime //2017-11-16 PM 01:23
var date2 = new Date(UTCDateString); //这步是关键
var year = date2.getFullYear();
var mon = formatFunc(date2.getMonth() + 1);
var day = formatFunc(date2.getDate());
var hour = date2.getHours();
// var noon = hour >= 12 ? 'PM' : 'AM';
// hour = hour>=12?hour-12:hour;
// hour = formatFunc(hour);
var min = formatFunc(date2.getMinutes());
var dateStr = year+'-'+mon+'-'+day+' '+hour+':'+min;
return dateStr
}
复制代码最后结果
utc2beijing("2018-12-18T23:36:26+08:00")
"2018-12-18 23:36"
复制代码2：日期转换 Tue Jan 01 2019 09:59:18 GMT+0800 (UTC时间) ---> 2018-12-18--------------------
function changeDateType(date) {
var now = new Date(date);
var year = now.getFullYear();
var honth = now.getMonth() + 1;
var day = now.getDate();
return `${year}-${honth}-${day}`
}
复制代码3：几天前 - 几小时前 - 几秒前 jsDateDiff('2018/12/19 22:00:00')-----------------
function jsDateDiff(pTime){
var d_minutes,d_hours,d_days,d;
var timeNow = parseInt(new Date().getTime()/1000);
pTime_new = new Date(pTime).getTime()/1000;
d = timeNow - pTime_new;
d_days = parseInt(d/86400);
d_hours = parseInt(d/3600);
d_minutes = parseInt(d/60);
if(d_days>0 && d_days<4){
return d_days+"天前";
}else if(d_days<=0 && d_hours>0){
return d_hours+"小时前";
}else if(d_hours<=0 && d_minutes>0){
return d_minutes+"分钟前";
}else{
return pTime;
}
}
复制代码**4： 获取当前日期2018-12-18 ------------------------------ **
function getCurrentDate(format) {
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 = "";
if (format == 1) { //精确到天
time = year + "-" + month + "-" + date;
} else if (format == 2) { //精确到分
time = year + "-" + month + "-" + date + " " + hour + ":" + minu + ":" + sec;
}
return time;
}
复制代码结果：getCurrentDate(1)精确到天 getCurrentDate(2)精确到分--------------
5：时间往前加，dateAdd(14) 14天后的时间------------------------------
function dateAdd(add) {
var dateTime = new Date();
dateTime = dateTime.setDate(dateTime.getDate() + add);
dateTime = new Date(dateTime);
return dateTime
}
复制代码** 结果： //dateAdd(14) 14天后 =》Tue Jan 01 2019 09:59:18 GMT+0800 (中国标准时间)-**
6：时间戳转化为年 月 日 时 分 秒---------------
function formatTime(number, format) {
var formateArr = ['Y', 'M', 'D', 'h', 'm', 's'];
var returnArr = [];
var date = new Date(number);
returnArr.push(date.getFullYear() + '年');
returnArr.push(formatNumber(date.getMonth() + 1 + '月'));
returnArr.push(formatNumber(date.getDate() + '日'));
returnArr.push(formatNumber(date.getHours()));
returnArr.push(formatNumber(date.getMinutes()));
returnArr.push(formatNumber(date.getSeconds()));
// returnArr.push(formatNumber(date.getMilliseconds()));
for (var i in returnArr) {
format = format.replace(formateArr[i], returnArr[i]);
}
return format;
}
复制代码number: 传入时间戳；format：返回格式，支持自定义，但参数必须与formateArr里保持一致--------
7：//获得两个日期之间相差的天数
function daysBetween(date1, date2) {
var date1Str = date1.split("-"); //将日期字符串分隔为数组,数组元素分别为年.月.日
//根据年 . 月 . 日的值创建Date对象
var date1Obj = new Date(date1Str[0], (date1Str[1] - 1), date1Str[2]);
var date2Str = date2.split("-");
var date2Obj = new Date(date2Str[0], (date2Str[1] - 1), date2Str[2]);
var t1 = date1Obj.getTime();
var t2 = date2Obj.getTime();
var dateTime = 1000 * 60 * 60 * 24; //每一天的毫秒数
var minusDays = Math.floor(((t2 - t1) / dateTime)); //计算出两个日期的天数差
var days = Math.abs(minusDays); //取绝对值
return days;
}
// s1 = "2018-8-10"
// s2 = "2018-8-22"
// console.log(daysBetween(s1, s2))
复制代码