timezone – Page 5 – Tarik Billa

datetime and timezone conversion with pytz – mind blowing behaviour

September 18, 2023 by Tarik

The documentation http://pytz.sourceforge.net/ states “Unfortunately using the tzinfo argument of the standard datetime constructors ‘does not work’ with pytz for many timezones.” The code: t = datetime( 2013, 5, 11, hour=11, minute=0, tzinfo=pytz.timezone(‘Europe/Warsaw’) ) doesn’t work according to this, instead you should use the localize method: t = pytz.timezone(‘Europe/Warsaw’).localize( datetime(2013, 5, 11, hour=11, minute=0))

Why does Heroku log using the server time rather than the Rails time zone?

September 17, 2023 by Tarik

After some further investigation into my own Heroku timezone problems, I found a post which indicates that you actually can specify the timezone at an application level, using the following command: heroku config:add TZ=Europe/Oslo I believe this may be the answer to all your troubles. Courtesy of http://www.reality.hk/articles/2010/01/07/1319/ (Edit: Broken link as of 2012.08.23. Archived … Read more

How to convert Long type datetime to DateTime with correct time zone

September 16, 2023 by Tarik

You’re looking for the ToLocalTime() method: long unixDate = 1297380023295; DateTime start = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc); DateTime date= start.AddMilliseconds(unixDate).ToLocalTime();

Converting date between timezones swift

September 15, 2023 by Tarik

Simpler version: extension Date { func convertToTimeZone(initTimeZone: TimeZone, timeZone: TimeZone) -> Date { let delta = TimeInterval(timeZone.secondsFromGMT(for: self) – initTimeZone.secondsFromGMT(for: self)) return addingTimeInterval(delta) } }

how to get tz_info object corresponding to current timezone?

September 12, 2023 by Tarik

>>> import datetime >>> today = datetime.datetime.now() >>> insummer = datetime.datetime(2009,8,15,10,0,0) >>> from pytz import reference >>> localtime = reference.LocalTimezone() >>> localtime.tzname(today) ‘PST’ >>> localtime.tzname(insummer) ‘PDT’ >>>

Rails: how get current time zone compatible with ActiveSupport::TimeZone[zone].parse()?

September 10, 2023 by Tarik

Use Time.zone.name, not Time.zone.to_s [1] pry(main)> Time.zone.to_s => “(GMT-05:00) Eastern Time (US & Canada)” [2] pry(main)> Time.zone.name => “Eastern Time (US & Canada)” [3] pry(main)> ActiveSupport::TimeZone[Time.zone.name] => (GMT-05:00) Eastern Time (US & Canada) As for how I got this (as requested), I just know the name method exists on Time.zone. If I didn’t know this … Read more

php: setting a timezone by UTC offset

September 7, 2023 by Tarik

convert epoch time to date

September 6, 2023 by Tarik

EDIT: Okay, so you don’t want your local time (which isn’t Australia) to contribute to the result, but instead the Australian time zone. Your existing code should be absolutely fine then, although Sydney is currently UTC+11, not UTC+10.. Short but complete test app: import java.util.*; import java.text.*; public class Test { public static void main(String[] … Read more

How do I alter the timezone of a DateTime in Ruby?

September 6, 2023 by Tarik

Using Rails 3, you’re looking for DateTime.change() dt = DateTime.now => Mon, 20 Dec 2010 18:59:43 +0100 dt = dt.change(:offset => “+0000”) => Mon, 20 Dec 2010 18:59:43 +0000

Different timezone_types on DateTime object

September 6, 2023 by Tarik