Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)




"I would just like to say that IQFeed version 4 is running very well and I am very happy with its performance. I would also like to extend a big thanks for the fast and efficient help that I always receive. My questions and concerns are always addressed promptly. Way to go!" - Comment from Josh in CO.
"The service is great, I see a noticeable improvement in my volume profiles over [broker]'s data feed" - Comment from Larry
"If you are serious about your trading I would not rely on IB data for serious daytrading. Took me a while to justify the cost of IQ Feed and in the end, it's just a 2 point stop on ES. Better safe than sorry" - Comment from Public Forum
"Version 4.0.0.2 has been working well for me and I appreciate that it is now a much tighter client to work with. I feel I can go to press with my own application and rely on a stable platform" - Comment from David in IA.
"I'm satisfied with IQFeed. It's the most reliable and fastest quote feed I have ever used. Although I'm a resident in China, it's still very fast!" - Comment from Xiaofei
"I've never had DTN go out on me since switching. ******* would go down a couple times every month when I was using them." - Comment from Bryce in AL.
"Boy, probably spent a thousand hours trying to get ******* API to work right. And now two hours to have something running with IQFeed. Hmmm, guess I was pretty stupid to fight rather than switch all this time. And have gotten more customer service from you guys already than total from them… in five years." - Comment from Jim
"I have been using IQFeed now for a few years in MultiCharts and I have zero complaints. Very, very rare to have any data hiccups or anything at all go wrong." - Comment from Public Forum
"I was with ******* for 4 years at $230 a month, this is a huge savings for me, GOD BLESS YOU PEOPLE," - Comment from T.S. via Email
"You have an excellent product !!!!!!" - Comment from Arely
Home  Search  Register  Login  Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTNMarkets on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »Time zones - ET /EST / EDT
Author Topic: Time zones - ET /EST / EDT (4 messages, Page 1 of 1)

HHH
-Interested User-
Posts: 1
Joined: Aug 29, 2022


Posted: Aug 29, 2022 04:15 AM          Msg. 1 of 4
Hello,

I am wondering if IqFeed time stamps take into account US daylight saving time, as US markets open at 9:30am EST during the autumn/winter but at 9:30am EDT/8:30am EST during the spring/summer.

So I am wondering if:

1. the IqFeed 9:30am time stamp is the opening time for US markets all year long?

2. time stamps are always EST, therefore I need to take take 9:30am during the autumn/winter, and 8:30am during the spring/summer?

Thanks
Edited by HHH on Aug 29, 2022 at 04:22 AM
Edited by HHH on Aug 29, 2022 at 04:30 AM

DTN_Stephen
-DTN Guru-
Posts: 453
Joined: Aug 22, 2014


Posted: Aug 29, 2022 06:23 AM          Msg. 2 of 4
Currently we do ajust for Daylight Savings Time yes.

Stephen Shockey
Senior Customer Support Representative and Product Support Specialist

DTN
800-779-7299
support@iqfeed.net

kastin
-Interested User-
Posts: 1
Joined: Nov 1, 2022


Posted: Nov 1, 2022 04:55 AM          Msg. 3 of 4
Hello,

Didn't want to start a new thread for a fairly related question.

when requesting historical data during a time of daylight savings, is the historical data adjusted too?

if yes is the adjustment for the whole length of request or does it "cut in and out|" at the dls times?

EG in a 180 historical day request say daylight savings changed 10 days ago would the whole 180 days be adjusted or only the part from 10 days on-wards.

Cheers
Jon

---
nfi what i'm doing, just blunt trial and error

DTN_Gary_Stephen
-DTN Guru-
Posts: 379
Joined: Jul 3, 2019


Posted: Apr 13, 2023 08:22 AM          Msg. 4 of 4
Quote: when requesting historical data during a time of daylight savings, is the historical data adjusted too?


No. The status of Daylight Savings Time is whatever it was at the time of the data.

Sincerely,
Gary Stephen
DTN IQFeed Implementation Support Specialist
 

 

Time: Sun December 3, 2023 11:39 PM CFBB v1.2.0 9 ms.
© AderSoftware 2002-2003