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 just wanted to let u know that your data feed/service is by far the best!!! Your unfiltered tick data is excellent for reading order flow and none of your competitors delivers this quality of data!" - Comment from Peter via Email
"You are much better than lawyers or the phone company because you answer the phone when I call! I just love your customer service." - Comment from Isreal
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"Just a thank you for the very helpful and prompt assistance and services. You provided me with noticeably superior service in my setup compared to a couple of other options I had looked at." - Comment from John
"I will tell others who want to go into trading that DTN ProphetX is an invaluable tool, I don't think anyone can trade without it..." - Comment from Luther
"My broker in Davenport suggested I give you a try as he uses your service and says its the best." - Comment from Bill via RT Chat
"Thanks for the great product and support. During this week of high volume trading, my QuoteTracker + IQ Feed setup never missed a beat. Also, thanks for your swiftness in responding to data issues. I was on ******* for a few years before I made the switch over early this year, and wish I had done it a long time ago." - Comment from Ken
"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
"There is no doubt that IQFeed is the best data provider. I am very satisfied with your services. And IQFeed is the only one that I would recommend to my friends. Now, most of them are using your product in China." - Comment from Zhezhe
"You are either overstaffed or people just don't have problems with your feed because customer support always answers the phone quickly." - Comment from Jay via Email
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: 396
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: Fri May 10, 2024 10:11 PM CFBB v1.2.0 9 ms.
© AderSoftware 2002-2003