I often need to display information based on or influenced by a user's actual local time which differs across time zones. Is there a reliable way of getting a user's current time and/or timezone?  Key Issues:   Server-side code is based on...

I use the Moment.js and Moment-Timezone frameworks, and have a Moment.js date object which is explicitly in UTC timezone. How can I convert that to the current timezone of the browser?  var testDateUtc = moment.tz("2015-01-30 10:00:00", "...

The format of my date string looks like this: yyyy-MM-ddTHH:mm:ss-0Z00  Example 1: 2010-03-05T07:03:51-0800  Example 2: 2010-07-01T20:23:00-0700  I need to create a date object using these date strings. new Date() does not work on this string. Please...

I have a scenario where I have a timezone offset (in minutes) and need to determine the timezone for it.  I know that all the data is not available (for example, there may be several timezones with an offset of -240 minutes) but a "best guess"...

For example, using a date and time control, the user selects a date and time, such that the string representation is the following:  "6-25-2012 12:00:00 PM"   It so happens that this user is in the EST time zone. The string is passed to the s...

I have this backend that sends me a pre formatted time in a set time zone, but without any information for the said time zone. The strings are like: "2013-08-26 16:55:00".  I can create a new moment.js instance with this string:  var time = m...

I have a line that sets the current date and time in a cell:   sheet.getRange(1,1).setValue(new Date());   Then I have a line that creates a formatted date based on that cell's value:  var addedDate = sheet.getRange(1,1).getValue(); var addedTime...

I have an application displaying a week of bookable time slots (of a resource).  A time slot is always 30 min long and can either start :00 or :30.  The availabilites are internally represented by the week's minutes (in an array), 0 meaning the w...

I need a way to convert times in the future to different timezones without relying on the user's computer time.  At registration time, the user supplies his timezone. When he logs in, I calculate the offset in minutes between the UTC time and his...

In using webpack to build my project, I typically require modules in CommonJS from npm modules. I need moment-timezone in my project, however in building the package you must also build all the data from moment-timezone, which can be quite a lot.   A...