/**
* You first need to create a formatting function to pad numbers to two digits…
**/
function twoDigits(d) {
if(0 <= d && d < 10) return "0" + d.toString();
if(-10 < d && d < 0) return "-0" + (-1*d).toString();
return d.toString();
}
/**
* …and then create the method to output the date string as desired.
* Some people hate using prototypes this way, but if you are going
* to apply this to more than one Date object, having it as a prototype
* makes sense.
**/
Date.prototype.toMysqlFormat = function() {
return this.getUTCFullYear() + "-" + twoDigits(1 + this.getUTCMonth()) + "-" + twoDigits(this.getUTCDate()) + " " + twoDigits(this.getUTCHours()) + ":" + twoDigits(this.getUTCMinutes()) + ":" + twoDigits(this.getUTCSeconds());
};
// Your default date object
var starttime = new Date();
// Get the iso time (GMT 0 == UTC 0)
var isotime = new Date((new Date(starttime)).toISOString() );
// getTime() is the unix time value, in milliseconds.
// getTimezoneOffset() is UTC time and local time in minutes.
// 60000 = 60*1000 converts getTimezoneOffset() from minutes to milliseconds.
var fixedtime = new Date(isotime.getTime()-(starttime.getTimezoneOffset()*60000));
// toISOString() is always 24 characters long: YYYY-MM-DDTHH:mm:ss.sssZ.
// .slice(0, 19) removes the last 5 chars, ".sssZ",which is (UTC offset).
// .replace('T', ' ') removes the pad between the date and time.
var formatedMysqlString = fixedtime.toISOString().slice(0, 19).replace('T', ' ');
console.log( formatedMysqlString );
或者一个单行的解决方案,
var formatedMysqlString = (new Date ((new Date((new Date(new Date())).toISOString() )).getTime() - ((new Date()).getTimezoneOffset()*60000))).toISOString().slice(0, 19).replace('T', ' ');
console.log( formatedMysqlString );
var data = new Date($.now()); // without jquery remove this $.now()
console.log(data)// Thu Jun 23 2016 15:48:24 GMT+0530 (IST)
var d = new Date,
dformat = [d.getFullYear() ,d.getMonth()+1,
d.getDate()
].join('-')+' '+
[d.getHours(),
d.getMinutes(),
d.getSeconds()].join(':');
console.log(dformat) //2016-6-23 15:54:16
var d = new Date(),
finalDate = d.toISOString().split('T')[0]+' '+d.toTimeString().split(' ')[0];
console.log(finalDate); //2018-09-28 16:19:34 --example output
var d = new Date('2016-6-23 1:54:16'),
finalDate = d.toISOString().split('T')[0]+' '+d.toTimeString().split(' ')[0];
console.log(finalDate); // 2016-06-22 01:54:16
一个简单的解决方案是向 MySQL 发送一个时间戳,并让它进行转换。Javascript 使用的时间戳以毫秒为单位,而 MySQL 希望时间戳以秒为单位——因此需要除以1000:
// Current date / time as a timestamp:
let jsTimestamp = Date.now();
// **OR** a specific date / time as a timestamp:
jsTimestamp = new Date("2020-11-17 16:34:59").getTime();
// Adding 30 minutes (to answer the second part of the question):
jsTimestamp += 30 * 1000;
// Example query converting Javascript timestamp into a MySQL date
let sql = 'SELECT FROM_UNIXTIME(' + jsTimestamp + ' / 1000) AS mysql_date_time';
// JavaScript timestamps need to be converted to UTC time to match MySQL
// MySQL formatted UTC timestamp +30 minutes
let d = new Date()
let mySqlTimestamp = new Date(
d.getFullYear(),
d.getMonth(),
d.getDate(),
d.getHours(),
(d.getMinutes() + 30), // add 30 minutes
d.getSeconds(),
d.getMilliseconds()
).toISOString().slice(0, 19).replace('T', ' ')
console.log("MySQL formatted UTC timestamp: " + mySqlTimestamp)
UTC 时间通常是在 MySQL 中存储时间戳的最佳选项 。如果您没有 root 访问权限,那么在连接开始时运行 set time_zone = '+00:00'。
JavaScript 时间戳基于设备的时钟 并包含时区。在发送由 JavaScript 生成的任何时间戳之前,应该将它们转换为 UTC 时间。JavaScript 有一个名为 toISOString ()的方法,该方法将 JavaScript 时间戳格式化为与 MySQL 时间戳类似的形式,并将时间戳转换为 UTC 时间。最后的清理是通过切片和替换进行的。
let timestmap = new Date()
timestmap.toISOString().slice(0, 19).replace('T', ' ')
长版本 显示正在发生的事情:
// JavaScript timestamps need to be converted to UTC time to match MySQL
// local timezone provided by user's device
let d = new Date()
console.log("JavaScript timestamp: " + d.toLocaleString())
// add 30 minutes
let add30Minutes = new Date(
d.getFullYear(),
d.getMonth(),
d.getDate(),
d.getHours(),
(d.getMinutes() + 30), // add 30 minutes
d.getSeconds(),
d.getMilliseconds()
)
console.log("Add 30 mins: " + add30Minutes.toLocaleString())
// ISO formatted UTC timestamp
// timezone is always zero UTC offset, as denoted by the suffix "Z"
let isoString = add30Minutes.toISOString()
console.log("ISO formatted UTC timestamp: " + isoString)
// MySQL formatted UTC timestamp: YYYY-MM-DD HH:MM:SS
let mySqlTimestamp = isoString.slice(0, 19).replace('T', ' ')
console.log("MySQL formatted UTC timestamp: " + mySqlTimestamp)
<script>
console.log(getTimestamp("Europe/Amsterdam")); // Europe/Amsterdam
console.log(getTimestamp()); // UTC
function getTimestamp(timezone) {
if (timezone) {
var dateObject = new Date().toLocaleString("nl-NL", { // it will parse with the timeZone element, not this one
timeZone: timezone, // timezone eg "Europe/Amsterdam" or "UTC"
month: "2-digit",
day: "2-digit",
year: "numeric",
hour: "2-digit",
minute: "2-digit",
second: "2-digit",
});
let [dateRaw, timeRaw] = dateObject.split(" ");
let [day, month, year] = dateRaw.split("-");
var timestamp = year + "-" + month + "-" + day + " " + timeRaw;
}else{
// UTC from @Gajus, 95% faster then the above
timestamp = new Date().toISOString().slice(0, 19).replace("T", " ");
}
return timestamp; // YYYY-MM-DD HH:MI:SS
}
</script>