I am using momentjs in alloy framework in Appcelerator. My api returns the date as - 2017-09-06T12:03:00.000Z I am using below code to format this date into readable form -
var dt = moment(record.createddate);
$.dateValue.text = moment(dt).format('lll');
But the output I get is - Sep 6, 2017 5:33 PM, which is not correct as the date saved in db and returned from api is EST and the date getting displayed is GMT+0530. How should i format this date so that I get the correct date value?
I guess, somewhere in your code, the moment's default timezone is set to GMT+0530. Something like moment.tz.setDefault('Asia/Colombo') could do this.
You can define in what timezone you want to display your date. This should work for you :
moment('2017-09-06T12:03:00.000Z').tz("Etc/GMT").format('lll')
Or if you want the value I suggested in the comments :
moment('2017-09-06T12:03:00.000Z').tz("Etc/GMT-2").format('lll')
For more informations about moment.js timezones, you can check the moment.js timezone docs.
Hope this helps !
Related
Im using the CalendarApi in flutter and in order to get events I use the list method like that:
calendarApi.events.list(
cls.calendarId,
timeZone: <specific timezone>
timeMin: DateTime.now().today().toUtc(),
timeMax: DateTime.now().tomorrow().toUtc(),
),
No matter what timezone I tried it always return the event start and end date in UTC format.
I tried using the timezones in multiple formats:
America/Los_Angeles
UTC - 08:00
GMT format
Pacific Standard Time
None of the following worked.
In addition in the in google calendar's settings the timezone is set correctly.
From the documentation:
Must be an RFC3339 timestamp with mandatory time zone offset, for example, 2011-06-03T10:00:00-07:00, 2011-06-03T10:00:00Z. Milliseconds may be provided but are ignored. If timeMax is set, timeMin must be smaller than timeMax.
Make sure the strings you are sending follow one of these pattens:
YYYY-MM-DDTHH:MM:SS±HH:MM
or
YYYY-MM-DDTHH:MM:SSZ
So for example, the time that this answer was posted would be:
2021-07-27T16:08:02+02:00
or:
2021-07-27T14:08:02Z
Where the Z signifies 'Zulu', or UTC.
I have a ISO8601 string (e.g. date="2015-07-10T04:31:25") I need to convert this to the format:
July 7, 2015, 4:31:25 PM (EDT)
Even though I can write a template and use substring() to transform the string in the date time format. However I am not sure how to achieve the AM/PM and time zone information?
Working code templates would be highly appreciated. Thanks!
I am not sure how to achieve the AM/PM ...
It can be calculated from the hour component as:
substring('AMPM', 1 + 2*(number($hour) > 11), 2)
Of course, in the given input, where $hour would be "04", the correct result is "AM", not "PM".
... and time zone information?
Your input does not contain any time zone information, so unless you want to hard-code EDT as a string, there is no way to get it.
I'm having some problems converting a string to a date object in google apps script.
My dates are in the following format, from a 3rd party API:
2013-01-17T17:34:50.507
I am attempting to convert this to a Date object:
return Date(stringDate);
And this is being returned:
Thu Jan 01 01:00:00 GMT+01:00 1970
Can someone tell me what i'm doing wrong, and how to resolve this issue ?
With moment.js, it is as easy as this to parse any of ISO 8601 format.
var date = Moment.moment("2013-01-17T17:34:50.507").toDate();
You can use moment.js to parse your arbitrary date string as well.
To use moment.js in GAS, you just need to add it in the script editor.
Open your script in GAS script editor and go to "Resources" then "Libraries...", then put this project key MHMchiX6c1bwSqGM1PZiW_PxhMjh3Sh48 and click "Add". Choose the version from the dropdown, then click "Save". Now, you are ready to use moment.js in GAS.
moment.js can be used to parse date string, create formatted date string, and many other date manipulation. Thanks to the author!
You can find the moment.js documentation here.
It doesn't appear that the Date object knows how to handle that date. The date is in ISO 8601 format. Javascript can handle Dates if they are given timezone information.
You will have to do some testing, but if those dates given to you are in UTC time, then just add a Z to the end of the date string before you call new Date().
Edit: The Apps Script Date object can't seem to handle a timezone other than UTC when parsing a Date. I opened an issue for it.
It doesn't work in GScript, at least for me at the time I'm writing it.
This post serves a working alternative: How do I format this date string so that google scripts recognizes it?
As of now new Date() seems to work:
var dT = new Date("2013-01-17T17:34:50.507");
console.info("dT: %s or %d", dT, dT.getTime());
returns dT: Thu Jan 17 17:34:50 GMT+01:00 2013 or 1.358440490507E12 in Google Apps Script
How can I shift timezone of Date object created in local timezone to target timezone?
Here is what I need. I want web-client to pick a date using DatePicker but resulting Date object should look like as if it was picked in another timezone. Since there is no way to tell DatePicker to do that I have to manually shift date.
For example it's Apr 6th 2012 2:42AM in California right now. Created Date will be in UTC-7 timezone. I want to have Date object with Apr 6th 2012 2:42AM in Europe/Moscow timezone.
Here is I do it right now:
final TimeZoneConstants constTz = GWT.create(TimeZoneConstants.class);
final TimeZone timeZoneMsk = TimeZone.createTimeZone(constTz.europeMoscow());
final TimeZone timeZoneCali = TimeZone.createTimeZone(constTz.americaLosAngeles());
Date curTime = new Date();
DateTimeFormat dateTimeFormat = DateTimeFormat.getFullDateTimeFormat();
Date mskTime = new Date(curTime.getTime() - (curTime.getTimezoneOffset() - timeZoneMsk.getStandardOffset()) * 60 * 1000);
String strLocal = dateTimeFormat.format(curTime, timeZoneCali); // Friday, 2012 April 06 02:42:59 Pacific Daylight Time
String strMsk = dateTimeFormat.format(mskTime, timeZoneMsk); // Friday, 2012 April 06 02:42:59 Moscow Standard Time
There are two problems with this method:
If you ask me it looks pretty bizarre.
Timezone in mskTime is still -0007. I wonder if it can cause any problems in future when I deserialize this object from Google App Engine datastore.
Or should I just produce string with full date of local Californian time, replace timezone in string and then generate new Date by calling DateTimeFormat.parse() ? It looks pretty hacky too...
Also what do you think of JodaTime for GWT ? Is it stable enough for production ?
Your code looks about right. Using DateTimeFormat.parse might make the intention clearer to a casual reader. It's not very often that you are given timezones A and B and one Date object, and you have to produce a new Date object that, when formatted in B, has the same time as the original when formatted in A.
Timezone in mskTime is still -0007. I wonder if it can cause any problems in future when I deserialize this object from Google App Engine datastore.
No, there can be no problems. Remember that a Date object represents a universal point in time not bound to a timezone. When it's April 6 14:40 in Moscow, it's April 6 03:40 in California, so the Date objects are equal.
Using ExtJS 4.0.2, I can type the following into the console:
Ext.util.Format.date('2012-01-13', "m-d-Y");
I get 01-12-2012
Why?
I can correct it with:
Ext.util.Format.date('2012-01-13 00:00:00', "m-d-Y");
Ext.util.Format.date in Ext 4.0.2 uses a Date object or a String (your case). This string is parsed using the native Date.parse() using the UTC time zone.
Try to explicitly parse it using Ext.Date.parse:
var dt = Ext.Date.parse("2012-01-13", "Y-m-d");
Ext.util.Format.date(dt, "m-d-Y");
This problem exists in Ext3, but the solution is slightly different:
var dt = '2012-01-31'; //date string
dt = Date.parseDate(dt, "Y-m-d");
Ext.util.Format.date(dt, 'm/d/Y'); //returns 01/31/2012
If you're unable to use Gregor's answer (e.g. filling a grid), note that changing the input to a non ISO 8601 date format will avoid the UTC parsing as well. For example
Ext.util.Format.date('01/13/2012', "Y-m-d");
will give 2012-01-13