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SQL Server - Convert UTC to Local Time

, 11 Jul 2006 CPOL
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Convert UTC to local time

Introduction

SQL Server does not provide a simple way to convert a UTC datetime value to a local time value. This project includes a table (tbTimeZoneInfo) with data to provide the Time Zone information and two functions to convert a UTC datetime value to any Local Time Zone.

The tbTimeZoneInfo table contains the Time Zone information for all the time zones from the registry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones. Anyone familiar with the TIME_ZONE_INFORMATION structure will recognize the structure of table tbTimeZoneInfo.

The function named GetLocalDateTime arguments are a TimeZoneID value from tbTimeZoneInfo and a UTC DateTime value. The GetUTCDate() function can be used to obtain the current UTC date.

Values in the tbTimeZoneInfo can be changed as needed. The values that are supplied in the form of SQL insertion scripts may not be up to date. They were obtained from the registry at a point in time and may now be out of date.

Simply read the UTCToLocal_ReadMe.txt file for instructions on creating the objects, inserting data and testing the GetLocalDateTime function.

History

  • 11th July, 2006: Initial post

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Chris Tillotson
Web Developer
United States United States
Live in Santa Barbara, CA aka "Paradise" with my awesome wife and daughter. Work as a software developer/typist.

Comments and Discussions

 
GeneralMy vote of 5 PinmemberCesar Esquivel19-Apr-13 10:45 
QuestionSummary of some issues Pinmemberemperorwal15-Nov-11 5:27 
AnswerRe: Summary of some issues PinmemberJoseph Leathlean13-Mar-12 7:43 
GeneralMy vote of 5 Pinmemberseenit1-Jul-11 16:18 
GeneralIndeed great article Pinmemberkishor kurapati3-Feb-11 23:54 
GeneralNorthern vs. Southern Hemisphere PinmemberJack Siedliski23-Apr-10 13:23 
QuestionDoes not work? Pinmemberretro__3-Mar-10 13:14 
AnswerRe: Does not work? Pinmemberretro__3-Mar-10 13:36 
GeneralDaylight saving time change for USA PinmemberRoman Skrabis17-Dec-09 0:53 
GeneralRe: Daylight saving time change for USA PinmemberJosh Warner-Burke15-Jan-10 9:46 
GeneralRe: Daylight saving time change for USA PinmemberAndyTexas15-Nov-10 7:09 
GeneralIssue where SQL Server DateFirst not set to 7 PinmemberTim Friesen28-Sep-09 6:21 
Generalgreat script Pinmembertrance_dude28-May-09 11:24 
Generalgreat PinmemberRa...aj17-Mar-09 2:11 
General"archive file is damaged" error Pinmemberstephen myint4-Dec-08 18:57 
GeneralThanks for solving a problem that should be handled by the DB PinmemberStephen W Giles17-Oct-08 8:27 
GeneralRe: Thanks for solving a problem that should be handled by the DB Pinmemberbuckindb3-Nov-08 5:34 
GeneralRe: Thanks for solving a problem that should be handled by the DB PinmemberStephen W Giles4-Nov-08 4:05 
GeneralRe: Thanks for solving a problem that should be handled by the DB PinmemberTim Friesen28-Sep-09 4:06 
GeneralRe: Thanks for solving a problem that should be handled by the DB PinmemberTim Friesen28-Sep-09 4:34 
GeneralConvert from local to UTC Pinmembertomasz1234526-Oct-07 9:29 
GeneralBug in GetDaylightStandardDateTime Pinmemberrwt2sdf527-Sep-07 5:01 
QuestionHi , Some Proble PinmemberRavi KM Mishra13-Sep-07 19:28 
GeneralSmall problem with GetLocalDateTime Pinmemberrockyfan2067-Dec-06 18:15 
GeneralResponse to question about returning local date only PinmemberChris Tillotson24-Jul-06 11:10 
GeneralThis is great!! One question Pinmembermingo336924-Jul-06 9:25 
GeneralLink to file is broken. PinmemberMarc Leger11-Jul-06 17:04 

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