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'm very glad I switched to IQFeed. It's working perfectly with no lag, even during fast market conditions." - Comment from Andy via Email
"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"I had always used ******* but for the past 2 weeks have been trying DTN IQFeed. Customer support has been extraordinary. They call just to make sure your problem hasn't recurred." - Comment from Public Forum
"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
"I am keeping IQFeed, much better reliabilty than *******. I may refer a few other people in the office to switch as well." - Comment from Don
"Everything is working great with the API. I love it." - Comment from Calvin
"With HUGE volume on AAPL and RIMM for 2 days, everyone in a trading room was whining about freezes, crashes and lag with *******, RealTick, TS and Cyber. InvestorRT with IQFeed was rock solid. I mean SOLID!" - Comment from Public IRC Chat
"Previously I was using *******. IQFeed is WAY more economical, and for my charting needs is just as good, if not better." - Comment from Public Forum Post
"I started a trial a few weeks back before the market went wild. DTN.IQ didn’t miss anything and beat my other provider. I decided to stay with you because of the great service through all the volatility." - Comment from Mike
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: 394
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: Thu April 25, 2024 3:41 PM CFBB v1.2.0 10 ms.
© AderSoftware 2002-2003