timezone

MySQL: How to select the UTC offset and DST for all timezones?

I want a list of all timezones in the mysql timezone tables, and need to select: 1) Their current offset from GMT 2) Whether DST is used by that timezone (not whether it's currently in use, just whether DST is considered at some point in the year for that timezone) Reason: I need to build a web form and match the users time zone inform...

How to auto select timezone in a web form & correlate it to mysql time zones

In javascript I can get the offset from UTC & whether DST is used by the users timezone. In MySQL I have a set of timezone tables. I'd like to auto select a timezone for the user from the MySQL tables. The mysql tables are not easy to understand (nor can I find schema documentation). I can't figure out how to go from a UTC offset + DS...

Perform daily action at a specific time based on user's local time zone

My Java application needs to send an email out to all users once per day. I'd like to deliver it at approximately 2AM based on each user's local time. So a user in New York would get the message at 2AM America/New_York time. A user in Los Angeles would get the message at 2AM America/Los_Angeles time. My mailing process would run once eac...

Get timezone name in codeigniter

I use the date helper in CI to save the timezone of the user when he signup eg: UM45. I want to set the timezone of each user based on that and display the date time correspondingly, using date_default_timezone_set(). But that accepts only string.. How can I get the name of the timezone based on UM45? ...

Convert NSDate to NSString with NSDateFormatter with TimeZone without GMT Time Modifier

I'm initializing my NSDateFormatter thusly: NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]]; [dateFormatter setDateFormat:@"EEE, d MMM yyyy HH:mm:ss z"]; [dateFormatter setTimeZone:[NSTimeZone timeZoneForSeco...

Maximum(:created_at) does not give the timestamp in local time format

Maximum(:created_at) does not give the timestamp in local time format but in UTC. I am using Rails 2.3.8 Is there another way to get the latest created_at in local time? ...

PHP Question - Safe mode error when setting timezone

I'm trying to install a PHP application on my server. But I'm getting this error: Warning: putenv() [function.putenv]: Safe Mode warning: Cannot set environment variable 'PHP_TZ' - it's not in the allowed list in .../public/timezone.inc on line 14 I've located the offending file and section of code (below). How would I fi...

Read a DateTime object in a different time zone

I have following scenario: USA: database & application server Europe: client The server reads a date time (e.g. 12:00) object from the database and send it to a client in Europe. The problem is now, the client displays this date time in the time zone of the client (e.g. 18:00), but we need the time in the database, independent of the ...

TimeZoneInfo.ConvertTime doesnt Covert anything

Running asp.net mvc 2 on win 7 with .net 4.0 I have a controller action method that receives 2 DateTime objects from a form. The UI on the form uses the jQueryUi datepicker (not sure if that maters). The user who fills out that form will ALWAYS be entering the date/time in Hawaiian time zone. I want to convert that to UTC time and ...

How do you handle timezones for data processing?

curious how people have solved this problem... I have a series of jobs that run overnight that roll up reports based on that day's data for customers. They're now asking for timezone support. One of the reports is.. you had x number of orders last night, however last night could be different depending on timezone. What is the best way ...

Writing ICS files for multiple clients, including Google

I need to write a script for publishing .ICS files. I've read that it's difficult to do this right, either because some calendar clients are buggy (lots of people claim Google Calendar is extremely buggy especially regarding time zones) or because developers aren't following the spec properly. I only need to do this for North America bu...

Does Time.to_i always return number of seconds since EPOCH in UTC?

Is the timezone difference always ignored, regardless in which zone the time is expressed in? Intuitively, the number of seconds passed since EPOCH should be higher for those who are, for example, in UTC+2. However, this seems not to be the case. ...

converting dates between timezones in AppModel->afterFind (cakePHP)

I have a cakePHP application that is pulling data from two different databases, which store dates and times in their data from different timezones. One database's timezone is Europe/Berlin, and the other's is Australia/Sydney. To make things more complicated, the application is hosted on a server in the US, and times must be presented to...

Converting a PHP anonymous function to non-anonymous

Hi, I asked a related question before I lost my login id - http://stackoverflow.com/questions/3723748/php-version-5-2-14-parse-error-syntax-error-unexpected-t-function-expecting - but this is the "entire" problem. I'm having a hard time figuring out how to convert this function (got from somewhere on SO) to work with PHP 5.2.14 (which ...

php DateTime timezone for Columbus Ohio

Columbus, Ohio is in EDT timezone but PHP::DateTime uses these php timezones and I cannot seem to find one that gives me correct time. America/New_York is off by an hour because until EDT ends we are +5 not 4. I am confused. For example right now its 11:26AM roughly speaking and I get back 10:26AM. The server has the right time set...

Convert UTC dates to local time in PHP

Hi, I'm storing the UTC dates into the DB using: $utc = gmdate("M d Y h:i:s A"); and then I want to convert the saved UTC date to the client's local time. How can I do that? Thanks ...

Linux, timezone and dst

Hi all, I'm using RHEL 5.3 (linux 2.6.18) I have a legacy code that relies on timezone and dst returned by ftime(3). Now from ftime(3) man pages I see that timezone and dstflag are not supported. Also in gettimeofday(3) those fields are not supported. How I can retrieve timezone and dst? Thanks ...

How to output NSDate with defaulttimezone?

How can I output the current date and time with the defaulttimezone? When I use following code I always get the time in GMT. Is it possible to convert NSDate to the defaulttimezone? I can’t use the NSDateFormatter because I need an NSDate Object with the correct time. NSDate *date = [NSDate date]; NSLog(@"Time: %@", date); Output: 201...

how to calculate the other country time. using my local machine time in c#?

how to calculate the other country time. using my local machine time in c#? Example: My system having India time and my array contains all the countries GMT time. How to do the calculation to get the other country time? if my time is 5.00 P.M if the country is Pakistan it should show 4.30 p.m ...

How do I convert a time to users time zone in Rails

I set the local timezone in Rails with this javascript function in my layout: <script type="text/javascript" charset="utf-8"> <% unless session[:timezone_offset] %> $.ajax({ url: '/main/timezone', type: 'GET', data: { offset: (new Date()).getTimezoneOffset() } }); ...