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how to convert date to 20160422060933.0Z format?

In angular I have to save data to database in this time format 20160422060933.0Z ?
Someone told me that this is Microsoft time format. I don't know how to convert date to this format, anyone encountered this before?
2016 is a year, 04 is a month, and 22 is a date but i don't know what 060933.0Z is. We use Dreamfactory API and SQL Server

Later edit: based on another answer, actually this seems to be a standard format colloquially called a "LDAP date". See Converting a ldap date for some details on the format (and how to parse it in Java). It can for sure be easily parsed with any typical JS date library or even without any library.
Let's break it down into pieces.
2016 = full year
04 = month, padded to 2 digits
22 = day of month, likely also padded to 2 digits
06 = hour of day, padded to 2 digits, likely on a 24h scale
09 = minute of the hour, padded to 2 digits
33 = second of the minute, likely padded to 2 digits
. = literal
0 = probably "second fraction"
Z = offset from UTC. Z meaning UTC.
Parsing it
You have several options to parse it:
If you assume you're going to always get an UTC datetime from the backend, you can naively parse it in JavaScript just by extracting the relevant substrings.
const input = '20160422060933.0Z';
new Date(Date.UTC(
input.substr(0, 4), // year
input.substr(4, 2) - 1, // month is 0-indexed
input.substr(6, 2), // day
input.substr(8, 2), // hour
input.substr(10, 2), // minute
input.substr(12, 2), // second
("0." + input.split(/[.Z]/gi)[1]) * 1000 // ms
));
// Fri Apr 22 2016 09:09:33 GMT+0300 (Eastern European Summer Time)
You can be a little creative and actually manipulate the string into an ISO format. Then you can just use the native Date.parse function, which supports parsing ISO strings (other formats are browser-dependent). The advantage is that it'll support dates that are not UTC as well.
new Date(Date.parse(
input.substr(0, 4) + "-" + // year, followed by minus
input.substr(4, 2) + "-" + // month, followed by minus
input.substr(6, 2) + "T" + // day, followed by minus
input.substr(8, 2) + ":" + // hour, followed by color
input.substr(10, 2) + ":" + // minute, followed by color
input.substr(12, 2) + // second
input.substr(14) // the rest of the string, which would include the fraction and offset.
))
// Fri Apr 22 2016 09:09:33 GMT+0300 (Eastern European Summer Time)
Use a library like luxon, momentjs, etc. This you might already have a JS library in your project. You'd need to build a date format pattern to parse this format into a native Date object or some other library-specific object. For example, with momentjs you'd do:
moment("20160422060933.0Z", "YYYYMMDDHHmmss.SZ")
// Fri Apr 22 2016 09:09:33 GMT+0300 (Eastern European Summer Time)
Formatting into it
This side of the operation is even simpler.
Without any date library, you just need to get rid of the "-", ":" and "T" separators from the ISO format. So you can just do the following:
new Date().toISOString().replace(/[:T-]/g, "")
// '20230209175305.421Z'
If you want to use a date library, then you just do the reverse, format operation using the same pattern as for parsing. Eg. in momentjs:
moment(new Date()).utc().format("YYYYMMDDHHmmss.S[Z]")
// "20230209175222.5Z"
(note that I needed to place the "Z" in brackets due to https://github.com/moment/moment-timezone/issues/213).

Just a side note to the other answer here:
You can use ldap2date npm package for parsing, should be not that "heavy" as moment.
Code:
import ldap2date from "ldap2date";
// or import { parse, toGeneralizedTime } from "ldap2date";
const dateString = "20160422060933.0Z";
const date = ldap2date.parse(dateString);
console.log(date.toUTCString());
// Fri, 22 Apr 2016 06:09:33 GMT
const str = ldap2date.toGeneralizedTime(date);
console.log(str);
// 20160422060933Z (note: no period.)
console.log(str.replace("Z", ".0Z"));
// 20160422060933.0Z
function getLdapString(date) {
return ldap2date.toGeneralizedTime(date);
}
const d = new Date();
console.log(getLdapString(d), d.toISOString());
// 20230209181603.965Z 2023-02-09T18:16:03.965Z
And some monkey-patching to match "format":
function getLdapString(date) {
return date.getMilliseconds() !== 0
? ldap2date.toGeneralizedTime(date)
: ldap2date.toGeneralizedTime(date).replace("Z", ".0Z");
}
const d = new Date();
d.setMilliseconds(15);
const d1 = new Date();
d1.setMilliseconds(0);
console.log("Date with milliseconds: ", d.toUTCString(), getLdapString(d));
console.log("Date without milliseconds: ", d1.toUTCString(), getLdapString(d1));
// Date with milliseconds: Thu, 09 Feb 2023 18:22:27 GMT 20230209182227.15Z
// Date without milliseconds: Thu, 09 Feb 2023 18:22:27 GMT 20230209182227.0Z
Or to ignore milliseconds part completelly
function getLdapString(date) {
const copy = new Date(date);
copy.setMilliseconds(0);
return ldap2date.toGeneralizedTime(copy).replace("Z", ".0Z");
}
console.log("Date with milliseconds: ", d.toUTCString(), getLdapString(d));
console.log("Date without milliseconds: ", d1.toUTCString(), getLdapString(d1));
// Date with milliseconds: Thu, 09 Feb 2023 18:29:50 GMT 20230209182950.0Z
// Date without milliseconds: Thu, 09 Feb 2023 18:29:50 GMT 20230209182950.0Z

JavaScript - Assigning Array Index to Return Value not working

I am trying to assign a return value to an element in an array, and for some reason it is overwriting both elements in the array to the same value instead of just the second element.
The datepicker I'm using for this can be found here, for reference.
http://www.eyecon.ro/datepicker/
function AddDays(date, days)
{
var newDate = new Date(date.setTime( date.getTime() + days * 86400000 ));
return newDate;
}
$('#nights').on('change', function(){
var $dp = $('#date');
var t = $dp.DatePickerGetDate();
console.log(t); // Output 1
t[1] = AddDays(t[0], $(this).val());
console.log(t); // Output 2
});
Output 1 : [Mon Jan 02 2017 00:00:00 GMT-0600 (Central Standard Time), Sun Jan 08 2017 23:59:59 GMT-0600 (Central Standard Time)]
Output 2 : [Mon Jan 09 2017 00:00:00 GMT-0600 (Central Standard Time), Mon Jan 09 2017 00:00:00 GMT-0600 (Central Standard Time)]
As you can see, when I try to assign the second element t[1] to equal the return of AddDays(t[0], $(this).val()) both dates get set the same exact date. However, the second element is supposed to be equal to the first element plus the number of days specified.
I also verified that the element $(this).val() is not zero. In my case that is in fact returning 7 when I run console.log($(this).val()); right before the assignment of t[1].
What am I doing wrong here?

Your function modifies the date that is passed in when you call setTime. You can remove the call to setTime to solve your problem.
function addDays(date, days) {
return new Date(date.getTime() + (days * 86400000));
}
Or make a brand new date object and call setDate or setTime on the copy.
function addDays(date, days) {
var result = new Date(date);
result.setDate(result.getDate() + days);
return result;
}

How to set date always to eastern time regardless of user's time zone

I have a date given to me by a server in unix time: 1458619200000
NOTE: the other questions you have marked as "duplicate" don't show how to get there from UNIX TIME. I am looking for a specific example in javascript.
However, I find that depending on my timezone I'll have two different results:
d = new Date(1458619200000)
Mon Mar 21 2016 21:00:00 GMT-0700 (Pacific Daylight Time)
// Now I set my computer to Eastern Time and I get a different result.
d = new Date(1458619200000)
Tue Mar 22 2016 00:00:00 GMT-0400 (Eastern Daylight Time)
So how can I show the date: 1458619200000 ... to always be in eastern time (Mar 22) regardless of my computer's time zone?

You can easily take care of the timezone offset by using the getTimezoneOffset() function in Javascript. For example,
var dt = new Date(1458619200000);
console.log(dt); // Gives Tue Mar 22 2016 09:30:00 GMT+0530 (IST)
dt.setTime(dt.getTime()+dt.getTimezoneOffset()*60*1000);
console.log(dt); // Gives Tue Mar 22 2016 04:00:00 GMT+0530 (IST)
var offset = -300; //Timezone offset for EST in minutes.
var estDate = new Date(dt.getTime() + offset*60*1000);
console.log(estDate); //Gives Mon Mar 21 2016 23:00:00 GMT+0530 (IST)
Though, the locale string represented at the back will not change. The source of this answer is in this post. Hope this helps!

Moment.js (http://momentjs.com/timezone) is your friend.
You want to do something like this:
var d = new Date(1458619200000);
var myTimezone = "America/Toronto";
var myDatetimeFormat= "YYYY-MM-DD hh:mm:ss a z";
var myDatetimeString = moment(d).tz(myTimezone).format(myDatetimeFormat);
console.log(myDatetimeString); // gives me "2016-03-22 12:00:00 am EDT"

For daylight saving, Eastern time become 4 hours behind UTC. That's why its offset is -4x60 = -240 minutes. So when daylight is not active the offset will be -300. The offset variable's value is the key point to be noted here. Kindly see this code in action in attached image.
var offset = new Date().getTimezoneOffset();// getting offset to make time in gmt+0 zone (UTC) (for gmt+5 offset comes as -300 minutes)
var date = new Date();
date.setMinutes ( date.getMinutes() + offset);// date now in UTC time
var easternTimeOffset = -240; //for dayLight saving, Eastern time become 4 hours behind UTC thats why its offset is -4x60 = -240 minutes. So when Day light is not active the offset will be -300
date.setMinutes ( date.getMinutes() + easternTimeOffset);

Compare dates issue - javascript

I need to compare dates in javascript.
After attempt many ways...
I choose:
var endDate = new Date(secondDate.getYear(), secondDate.getMonth(), secondDate.getDate(), 0, 0, 0,0);
var startDate = new Date(firstDate.getYear(), firstDate.getMonth(), firstDate.getDate(), 0, 0, 0, 0);
if (endDate.getTime() >= startDate.getTime()) {
isValid = true;
}
else {
isValid = false;
}
In my situation:
---startDate = Tue Apr 01 1997 00:00:00 GMT+0200 (Jerusalem Standard Time) (i.e, 01/04/1997)
---endDate = Thu Jul 26 114 00:00:00 GMT+0200 (Jerusalem Standard Time) (i.e, 26/07/2014)
You see? startDate is small then endDate, right?
But:
---endDate.getTime() returns: -58551904800000
---startTime.getTime() returns: 859845600000
so, endDate.getTime() >= startDate.getTime() returns false...
In other situation, it works well:
---startDate: Sat Jul 21 114 00:00:00 GMT+0200 (Jerusalem Standard Time) (i.e, 21/07/2014)
---endDate: Sat Jul 28 114 00:00:00 GMT+0200 (Jerusalem Standard Time) (i.e, 28/07/2014)
---startDate.getTime() returns -58552336800000
---endDate.getTime() returns -58551732000000
so, endDate.getTime() >= startDate.getTime() returns true...
It seems like that javascript functions have another behavior for dates after year 2000.
What should I do? which code will be match to all of the optional situations?
Thanks.

Yeah like ghusse said, there is a problem with your end time if you fixed it so it was 2014 you would get a result such as 1406329200000 instead of -58551904800000

I found a solution, after I read Josh and ghusse answers and advice:
Use getFullYear(), instead getYear(), and all will work O.K.

Apparently, you have a problem with your end dates :
Thu Jul 26 114 00:00:00 GMT+0200
Does not mean 21/07/2014 but 21/07/114
According to the doc, here are 2 correct ways of creating your date:
var endDate = new Date(21, 6, 2014);
// Or a string corresponding to a version of ISO8601
var endDate = new Date('2014-07-21T00:00:00z+3');

round up/ round down a momentjs moment to nearest minute

How do you round up/ round down a momentjs moment to nearest minute?
I have checked the docs, but there doesn't appear to be a method for this.
Note that I do not want a string rounded to the nearest minute, I want a moment returned (or modified in place, either is fine). I prefer not to have to convert to a string, and the convert back too.
Thanks.
As requested, here is some code:
var now = new moment(new Date());
if (now.seconds() > 0) {
now.add('minutes', -1);
}
now.seconds(0);
as you can see, I have managed to manually round down the moment here, but it seems rather hacky. Just after a more elegant way of accomplishing this.

To round up, you need to add a minute and then round it down. To round down, just use the startOf method.
Note the use of a ternary operator to check if the time should be rounded (for instance, 13:00:00 on the dot doesn't need to be rounded).
Round up/down to the nearest minute
var m = moment('2017-02-17 12:01:01');
var roundDown = m.startOf('minute');
console.log(roundDown.toString()); // outputs Tue Feb 17 2017 12:01:00 GMT+0000
var m = moment('2017-02-17 12:01:01');
var roundUp = m.second() || m.millisecond() ? m.add(1, 'minute').startOf('minute') : m.startOf('minute');
console.log(roundUp.toString()); // outputs Tue Feb 17 2017 12:02:00 GMT+0000
Round up/down to the nearest hour
var m = moment('2017-02-17 12:59:59');
var roundDown = m.startOf('hour');
console.log(roundDown.toString()); // outputs Tue Feb 17 2017 12:00:00 GMT+0000
var m = moment('2017-02-17 12:59:59');
var roundUp = m.minute() || m.second() || m.millisecond() ? m.add(1, 'hour').startOf('hour') : m.startOf('hour');
console.log(roundUp.toString()); // outputs Tue Feb 17 2017 13:00:00 GMT+0000

Partial answer:
To round down to nearest moment minute:
var m = moment();
m.startOf('minute');
However, the equivalent for rounding up, endOf, doesn't quite give the expected result.

Rounding to the nearest hour can be achieved by adding half an hour and then run .startOf('hour'). This is the same for any time measurement.
var now = moment();
// -> Wed Sep 30 2015 11:01:00
now.add(30, 'minutes').startOf('hour'); // -> Wed Sep 30 2015 11:31:00
// -> Wed Sep 30 2015 11:00:00
var now = moment();
// -> Wed Sep 30 2015 11:31:00
now.add(30, 'minutes').startOf('hour'); // -> Wed Sep 30 2015 12:01:00
// -> Wed Sep 30 2015 12:00:00

The roundTo feature could make it into a future release.
Examples:
moment().roundTo('minute', 15); // output: 12:45
moment().roundTo('minute', 15, 'down'); // output: 12:30

Rounding Down
Easy. As stated by many others, just use Moment.startOf:
var roundDown = moment('2015-02-17 12:59:59').startOf('hour');
roundDown.format('HH:mm:SS'); // 12:00:00
Importantly, this also works as expected:
var roundDown = moment('2015-02-17 12:00:00').startOf('hour');
roundDown.format('HH:mm:SS'); // 12:00:00
Rounding Up
Slightly trickier, if we want to round up with a proper ceiling function: for example, when rounding up by hour, we want 12:00:00 to round up to 12:00:00.
This does not work
var roundUp = moment('2015-02-17 12:00:00').add(1, 'hour').startOf('hour');
roundUp.format('HH:mm:SS'); // ERROR: 13:00:00
Solution
function roundUp(momentObj, roundBy){
return momentObj.add(1, roundBy).startOf(roundBy);
}
var caseA = moment('2015-02-17 12:00:00');
roundUp(caseA, 'minute').format('HH:mm:SS'); // 12:00:00
var caseB = moment('2015-02-17 12:00:00.001');
roundUp(caseB, 'minute').format('HH:mm:SS'); // 12:01:00
var caseC = moment('2015-02-17 12:00:59');
roundUp(caseC, 'minute').format('HH:mm:SS'); // 12:01:00

A more precise answer:
t.add(30, 'seconds').startOf('minute')
Case1: Rounding down if seconds < 30
t = moment(); //12:00:05
t.add(30, 'seconds').startOf('minute') //12:00:00
Case2: Rounding up if seconds >= 30
t = moment(); //12:00:33
t.add(30, 'seconds').startOf('minute') //12:01:00

I was searching for this same question and found a better solution:
Use the third parameter in diff() function:
moment("2019-05-02 17:10:20").diff("2019-05-02 17:09:30","minutes",true)
By setting third parameter to true, you get the raw value as response that you can round by yourself using Math.round()
See JSFiddle:
https://jsfiddle.net/2wqs4o0v/3/

This solution worked for me;
function round_up_to_nearest_hour(date = new Date()) {
return moment(date).add(59, 'minutes').startOf('hour').toDate();
}

Just another possibility:
const now = moment();
// -> Wed Sep 30 2015 11:57:20 GMT+0200 (CEST)
now.add(1, 'm').startOf('minute');
// -> Wed Sep 30 2015 11:58:00 GMT+0200 (CEST)

The simplest solution so far:
function floor(time, floorBy = 'minute') {
return time.startOf(floorBy);
}
function ceil(time, ceilBy = 'minute') {
return time.subtract(1, 'millisecond').add(1, ceilBy).startOf(ceilBy);
}
// The solution is above. The code below is an optional test:
console.log(
floor(moment('2019-01-01 12:00:00.000')).format('H:mm:ss.SSS') === '12:00:00.000',
ceil(moment('2019-01-01 12:00:00.000')).format('H:mm:ss.SSS') === '12:00:00.000',
floor(moment('2019-01-01 12:00:00.001')).format('H:mm:ss.SSS') === '12:00:00.000',
ceil(moment('2019-01-01 12:00:00.001')).format('H:mm:ss.SSS') === '12:01:00.000',
floor(moment('2019-01-01 12:15:16.876'), 'hour' ).format('H:mm:ss.SSS') === '12:00:00.000',
ceil(moment('2019-01-01 12:15:16.876'), 'hour' ).format('H:mm:ss.SSS') === '13:00:00.000',
floor(moment('2019-01-01 12:59:59.999'), 'second').format('H:mm:ss.SSS') === '12:59:59.000',
ceil(moment('2019-01-01 12:59:59.999'), 'second').format('H:mm:ss.SSS') === '13:00:00.000',
floor(moment('2019-01-01 12:00:00.025'), 'ms' ).format('H:mm:ss.SSS') === '12:00:00.025',
ceil(moment('2019-01-01 12:00:00.025'), 'ms' ).format('H:mm:ss.SSS') === '12:00:00.025'
);
<script src="//cdn.jsdelivr.net/npm/moment#2.24.0/min/moment.min.js"></script>