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»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: 398
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
 

 

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