search for: utc

Hello, my series of dates look like [1] "2012-05-30 18:30:00 UTC" "2012-05-30 19:30:00 UTC" [3] "2012-05-30 20:30:00 UTC" "2012-05-30 21:30:00 UTC" [5] "2012-05-30 22:30:00 UTC" "2012-05-30 23:30:00 UTC" [7] "2012-05-31 00:30:00 UTC" "2012-05-31 01:30:00 UTC" [9] "2012-05-31...

I new in R programming language. I have some time data time [1] "2005-01-03 05:11:39 UTC" "2005-01-03 06:36:02 UTC" "2005-01-03 06:36:55 UTC" [4] "2005-01-03 06:37:00 UTC" "2005-01-03 06:38:04 UTC" "2005-01-03 06:38:04 UTC" [7] "2005-01-03 06:38:04 UTC" "2005-01-03 06:38:04 UTC" "2005-01-03 06:38:05 UTC&q...

...sers, I have a maybe small problem which I cannot solve by myself. I want to convert "chron" "dates" "times" (04/30/06 11:35:00) to a number with as.POSIXct. The Problem is that I can't choose different timezones. I always get "CEST" and not "UTC" what I need. date = as.POSIXct(y,tz="UTC") "2006-04-30 11:35:00 CEST" Then I tried to use as.POSIXlt. date = as.POSIXlt(y,tz="UTC") "2006-04-30 11:35:00 UTC" The advantage is I get time in UTC but now the problem is that I can calculate numbers....

Hello All Have 2 tables dt1: start end kwh10min 2013-04-01 00:00:54 UTC 2013-04-01 01:00:10 UTC 0.05 2013-04-01 00:40:26 UTC 2013-04-01 00:50:00 UTC 0.1 2013-04-01 02:13:20 UTC 2013-04-01 04:53:42 UTC 0.15 2013-04-02 02:22:00 UTC 2013-04-01 04:33:12 UTC 0.2 2013-04-01 02:26:23 UTC 2013-04-01 04:05:12 UTC 0.25 2013-04-01 02:42:47 UTC 2013-04-01 04:34:33 UTC 0.3 2013-04-...

A user here noticed the following difference between Linux and Windows versions of R-2.15.3 (and R-3.0.0, I think) when using times within a second of the end of 1969: f <- function (sec = -1) { x1 <- as.POSIXct(c(2 * sec, sec, 0), origin = "1970-01-01", tz = "UTC") x2 <- as.POSIXlt(x1) x3 <- as.POSIXct(x2, origin = "1970-01-01", tz = "UTC") list(x1 = x1, x2 = x2, x3 = x3) } On Windows I get: > f(-1) $x1 [1] "1969-12-31 23:59:58 UTC" [2] "1969-12-31 23:59:59 UTC" [3] "1970-01-0...

The manual entry for as.POSIX says this about time zone codes... Usage as.POSIXct(x, tz = "") tz A timezone specification to be used for the conversion... but it fails to mention what these "specifications" are. So far, I have tried... as.POSIX(x, tz="UTC") ... works, gives UTC times as.POSIX(x, tz="UTC") ... works, gives EST times as.POSIX(x, tz="CST") ... does NOT work, gives UTC times How do I get Central Standard Time or the US? Anybody know what the code is? Thanks. [[alternative HTML version deleted]]

One problem with the daylight savings is that they mess with reporting tools that use timestamps. I guess an application could be configured to log UTC instead of local time, but that's not always doable. Also, if you have servers in several different timezones, it's better if all systems follow the same clock. So, I'm thinking it's perhaps better if I just use ZONE="UTC" on all systems. These are the steps I can think...

My environment.rb contains config.time_zone = ''UTC'' If my understanding is correct, rails should assume time values coming from the database are UTC, and since config.time_zone is set to ''UTC'', it should not try to convert the times. Instead, rails is assuming that the db values are Eastern (my local zone) and is incorr...

I have installed CentOS on a VM by checking 'System Clock uses UTC' option. Later I selected CST time zone. Now the date command shows UTC time with CST timezone: "Thu Dec 1 04:14:39 CST 2011". How do I change system clock to show CST local time? Also, more likely a dumb question but why isn't date command showing UTC here instead of CST? jM

I have the following library code: def normal_time_now return DateTime.now.utc if default_timezone == :utc return DateTime.now end This is dependent upon a setting in config/environment.rb # Make Active Record use UTC-base instead of local time config.active_record.default_timezone = :utc I want to test that I get the expected results with the config set to u...

...I explain the problem again, now with more detais. I am collecting the track positions of our research vessel from www.marinetraffic.com. In the page, the data appear in a table: Timestamp Source Speed (kn) Latitude (?) Longitude (?) Course (?) Show on Map 2017-07-11 10:57 (UTC) Terr-AIS 8.6 37.36228 -9.176811 200 2017-07-11 10:54 (UTC) Terr-AIS 8.4 37.36875 -9.174048 200 2017-07-11 09:50 (UTC) Terr-AIS 8 37.51499 -9.184502 149 2017-07-11 09:08 (UTC) Terr-AIS 7.7 37.60513 -9.228263 169 2017-07-11 09:05 (UTC) Terr-AIS...

Hi I must be slipping, but say I have a string that looks like: 3/11/2012 2:50:00 AM If I use the UTC timezone and ask it to parse this time, what would you expect the result to be? Personally, I''d say 3/11/2012 2:50:00 AM UTC Given this is the DST switchover date (for some places) this is an edge case. It''s the "spring forward" rule so 2:50 AM is 3:50... But not in...

Hi Gabor and everybody; Thanks Gabor, with the alternative step you've told me the problem is resolved. Comparing the two procedures: Extract from the source 'character' data: > rain$ts[2039:2046] [1] "25/03/2000 22:00:00 UTC" "25/03/2000 23:00:00 UTC" [3] "26/03/2000 00:00:00 UTC" "26/03/2000 01:00:00 UTC" [5] "26/03/2000 02:00:00 UTC" "26/03/2000 03:00:00 UTC" [7] "26/03/2000 04:00:00 UTC" "26/03/2000 05:00:00 UTC" Proc 1. The 5th el. of the o...

...>> I am collecting the track positions of our research vessel from >> www.marinetraffic.com. In the page, the data appear in a table: >> >> Timestamp Source Speed (kn) Latitude (?) Longitude (?) >> Course (?) Show on Map >> 2017-07-11 10:57 (UTC) Terr-AIS 8.6 37.36228 -9.176811 >> 200 >> 2017-07-11 10:54 (UTC) Terr-AIS 8.4 37.36875 -9.174048 >> 200 >> 2017-07-11 09:50 (UTC) Terr-AIS 8 37.51499 -9.184502 >> 149 >> 2017-07-11 09:08 (UTC) Terr-AIS 7.7 37.6...

Hi, I am extracting positions data from the marine traffic website. The table has a "Timestamp" column which, in the browser, appears with the format yyyy-mm-dd HH:MM (UTC), e.g. 2017-07-10 14:04 (UTC). When I import the table, the same date "2017-07-10 14:04 (UTC)" appears as "1499696500149969650021 minutes ago", This is the more recent date and time. Older records, as e.g. "2017-07-09 17:02 (UTC)" appear as e.g. "1499619726149...

...blem again, now with more detais. > I am collecting the track positions of our research vessel from www.marinetraffic.com. In the page, the data appear in a table: > > Timestamp Source Speed (kn) Latitude (?) Longitude (?) Course (?) Show on Map > 2017-07-11 10:57 (UTC) Terr-AIS 8.6 37.36228 -9.176811 200 > 2017-07-11 10:54 (UTC) Terr-AIS 8.4 37.36875 -9.174048 200 > 2017-07-11 09:50 (UTC) Terr-AIS 8 37.51499 -9.184502 149 > 2017-07-11 09:08 (UTC) Terr-AIS 7.7 37.60513 -9.228263 169 > 2017-07-11 09:0...

...f > you're looking for support with issues or high level status updates > it's unlikely to be useful to you. > > This may change as we settle in to a "rhythm" and depending on > people's changing availability, but we're currently alternating > between 3am UTC and 4pm UTC on Thursdays, with the next call 3am UTC > on Thursday 16th. Ana Pazos will be hosting this Thursday's call, > hangout/dial-in details to be confirmed. The 3am UTC time seems unpopular, so for the time being we're going to stick with 4pm UTC on a Thursday. Hangouts URL f...

...some trouble getting it to work on my Windows machine. Searching the web, I found http://wiki.rubyonrails.com/rails/pages/HowtoSetDefaultTimeZone ...which explains how to set the default timezone. I''m using an environment.rb that include the lines: ActiveRecord::Base.default_timezone = :utc ENV[''TZ''] = ''US/Eastern'' This works fine on the Unix server running the application (Site5), where Time.now outputs a UTC time, but on the windows machine the ENV[''TZ'']=''UTC'' line is either ignored or doesn''t work, be...

...: -U S-1-5-21-2447931902-1787058256-3961074038-5004 Last login: Mon Aug 8 22:00:37 2005 from 192.168.1.101 Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 5.4-RELEASE (GENERIC) #0: Sun May 8 10:21:06 UTC 2005 smbsvr# pdbedit -V Version 3.0.12 smbsvr# pdbedit -r Administrator Unix username: Administrator NT username: Account Flags: [U ] User SID: S-1-5-21-1375268081-527015025-691025275-3006 Primary Group SID: S-1-5-21-1375268081-527015025-691025275-3007 Full Na...

...ad the documentation for the function you are using? In particular, what about the colClasses argument? If you don't let readHTMLTable guess what the format is (have it read in as character data) then you have a fighting chance to get it right yourself, e.g. as.POSIXct( "2017-07-10 14:04 (UTC)", format="%Y-%m-%d %H:%M (UTC)", tz="UTC" ) ----- [1] http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example [2] http://adv-r.had.co.nz/Reproducibility.html [3] https://cran.r-project.org/web/packages/reprex/index.html -- Sent from my ph...