C# - Convert A Date And Time To UTC Time Based On The Time Zone Of The User?

Sep 6, 2009

I have an ASP.NET application with a SQL Server back end. I am storing all my dates in UTC format and doing the appropriate conversions to the local time zone of the browser viewing it. One of the pages asks for a start date and end date (no times).

I am taking the start date and setting the time to 00:00:00 hours (midnight) and I'm taking the End time and adding a time of 23:59:59, so that the date range covers the whole day. Now what I'm trying to do is do a SQL query to do a search for records in this date range. The problem is, the data in SQL is in UTC time and the user is typing their dates and times in their local date and times. My quickest solution was to convert the date and time to UTC, then search the records. However, by doing this, I am to believe ASP.NET converts the given time and date to UTC based on the server time zone. How can I convert a date and time to UTC time based on the time zone of the user?

View 5 Replies


ADVERTISEMENT

Clock - UTC - Give The Users Current Time Zone/local Time

Jul 22, 2011

So I currently have the following:

2 timers

2 labels

1st label is "Clock" this pulls the time from the users current time zone/local time

2nd label is "UTCClock" Which would be UTC time

Now I have this for the first label: clock.Text = Format(TimeOfDay, "hh:mm:ss tt")

Which would give the users current time zone/local time. As for the UTC.. how would I add in for the UTC time from where the user is located at? I did some searches.. but couldnt find what I was looking for.. IM pretty sure its not as easy as getting the users current time zone/local time.. So im assuming that Theres a "bit more" code into getting UTC time..

View 5 Replies

Remoted DateTime Values Can Not Be Converted To The Equivalent Local Time Of A Remote Computer That Is In A Different Time Zone

Aug 24, 2011

I used .NET Framework 1.1 in C/S project before. Now I have updated the project to use .NET Framework 3.5 without modifying source code, but I have found that : the Remoted DateTime values can not be converted to the equivalent local time of a remote computer that is in a different time zone. In .NET Framework 1.1, the DateTime values can be converted automatically.

[Code]...

View 2 Replies

Get SNTP Time - User Can Changes The System Time Of His Computer To A Advancing Date?

Jan 24, 2012

I'm using

Days = Dat2.Subtract(Dat1).Days

where

Dat2 = today

Dat1 = installed date

to trace the days of a program installed in user's computer.However, the user can changes the system time of his computer to a advancing date. How can I get a SNTP time from internet to solve this problem?

View 2 Replies

Finding Time Zone And Utc Offset For Particular Location And Date

Jun 13, 2012

Basically I am looking for a means within a asp.net 2.0 (or higher) application, to identify a time zone and UTC offset for a specific location and date. I want to be able to look up the time zone rules using either city & state, Zip, or LAT & LON I have an event database that tracks location, date and time for the events. Times are recorder relative to the event and the records do not currenlty indicate the timezone for the event or whether or not DST is in effect. Recently, I have encountered a situation where I need to link several events across different time zones. What I am looking to do is:

first, record a master event, say for August 13 2012 at 8:PM in New York, NY 10021

Second I need to record a related event in Houston TX.

When I record the related event I want it to automatically populate the date and time relative to its local time time zone rules. To do this it needs to be able to identify the effective timezone and UTC offset for the master event as well as the linked event so that I can calculate the correct date and time to display on the satelite program. As a future update I would probably capture the time zone /utc offsets with each program so that I don't have to recalculate the master record each time I want to add a related event.

So far I have not seen a way from system.timezone or timezoneinfo to be able to look up a timezone and the effective UTC offset of a given date and location.

View 2 Replies

How Does DotNet Handle Parametrized Dates Where Programmatic Date Has No Time But Sql Date Has Time

Jul 16, 2010

Thought I'd see if Stack overflow is quicker than me testing something while I get a thousand interruptions from other work :)

I'm updating an old VB net application and trying to refactor some of the logic as I go. The app looks for data from a single date across a few tables and writes that view to a file.

Writing the query in SQL I'd get the equivalent of

SELECT * FROM table
WHERE CAST(FLOOR(CAST(table.date AS float))AS datetime) = '15-Jul-2010'

Ideally I'd use

SELECT * FROM table WHERE date=@input

and add a date object as a parameter to a System.Data.SqlClient.SqlCommand instance

Are those two comparable? Will I get the results I expect?

View 1 Replies

Record A Start Date And Time And Then The Stop Date And Time In A Rich Text Box

Jan 12, 2010

I am using VB 2008 and want to record a start date and time and then the stop date and time in a rich text box, i can get the start time into the box but so far can only stop the time instead of 2 seperate times, what i have is a drop down box with a list of computers 1-10 i was trying to get it so you picked a certain computer and that went into the text box then you started the timer and that was recorded, finally you stopped the timer and that was recorded but as i am a total newbie it does not work

Here is the code i have.

Public Class Form1
Dim time2 As Date

[CODE]...................

View 11 Replies

When Form Loads It Load The Current Date And Time But The Time Does Not Change It Should Run?

Aug 24, 2010

I am using this line of code on form load event it is working very fine but i have to problems

1. It replaces the form name and display the date and time but i want to keep both date and time and forms caption separated by some space.

2. When form loads it load the current date and time but the time does not change it should run.

What should i do please please help me code is as follows

Me.Text = Date.Now.ToLongDateString & " - " & TimeOfDay

View 11 Replies

Asp.net - Get The Current Date And Time In Textbox In IST ( Indian Standard Time)

Dec 6, 2010

How to get the current date and time in textbox in IST ( Indian Standard Time) in vb.net ?

View 1 Replies

Trigger An Event At The Time Selected In The Date Time Picker

Dec 23, 2010

i'm using a date time picker with format set to time. i want to be able to trigger an event at the time selected in the date time picker

View 19 Replies

Allows A User To Select A Program To Run At A Certain Time For A Specific Amount Of Time All Choosen By The User

Jul 1, 2010

I have a program that allows a user to select a program to run at a certain time for a specific amount of time all choosen by the user. Everything works with the exception of if my program has launched the other program, my program become non-responsive. Meaning I am not able to look at that window again. Not that one really needs too, because when time is up my program closes the program it opened, then closes itself. I just want to be able to see my program when the other program is running. how to do this and perhaps drop me some links, that would be wonderful. This is what I have coded, but like I stated there are no code errors.

[Code]...

View 5 Replies

Adjust Date/time From PDT To Local Time By +-24 Hours?

Feb 10, 2012

I have a program that reads a file with Pacific Daylight Time, I want users to see the time and date in their local environment.

At present I have in Australia a time difference of 18 hours, so I have a list box with -24 to +24 and currently set at 18, my code is elementary as long as I have moved past day one of the month it suits me personally, but I want to distribute my app, so I need something better.

View 11 Replies

Date Time Picker And Event To Trigger With Just Time

Dec 22, 2010

i'm using a date time picker and want an event to trigger with just the time so it will trigger every day at a certain time. can anybody help

View 1 Replies

Now() Function Returns Date And Time Which Is Different From System Time

Nov 24, 2009

The Now() function in VB.NET returns date and time which is different from the system time that I see on the right-bottom on the notification bar. It is 15 hours slower than the system time. Has anyone ever met this problem? I'm using .NET 2.0.

View 2 Replies

Store Time Date And Time To The Mysql Database?

Jun 24, 2009

Im using vb.net and the database is mysql to write a time management system. how i store date and time to the database?

View 2 Replies

Time Display - Adding Hours To Convert UTC Time

Dec 20, 2010

I am trying to create what I am sure is a simple program to add hours to convert UTC time. I want to type in a UTC time and have it convert for every state in Australia. [Code] Now that works fine however when the conversion goes past "midnight" it then shows the date and time. I have tried about 50 different things but cannot get it to remove the date when the converted time passes midnight. [Code] The string was not recognized as a valid DateTime. There is an unknown word starting at index 18.

View 8 Replies

Highlighting A Row, Based On Date And Time?

Jan 20, 2012

Ok, here is my problem. I got a wonderful dataset/database going on. In my program I have a datagrid (TicketGrid). I need it to highlight the Ticket Created DateTime if the ticket is older than 45 mins, based off system time

For i As Integer = 0 To Me.TicketGrid.Rows.Count - 1
If Me.TicketGrid.Rows(i).Cells(0).Value <= Date.Now Then
Me.TicketGrid.Rows(i).Cells(0).Style.BackColor = Color.Yellow

[code]......

View 9 Replies

DB/Reporting :: Search A Table, Confining To A Specific Date Range Based On A Date-time Column?

Jul 14, 2009

Would it be possible to search a table, confining to a specific date range based on a date-time column, and get a count of the 10 most used words in a particular var-char column excluding a list of words?All in SQL?Currently I am pulling out the records that match and sorting through the contents outside of SQL, I would think where I can do it directly on the server it would be more efficient.(SQL 2008)

View 4 Replies

How To Save Text Date And Time At The Same Time

Jan 24, 2011

I am doing my school on project on rs 232. it involoves VB. I have found out how to save text in .txt file in the code. But i have no idea when i save this particular text for instance with time and date oso..

For example my i can do this.I want to save " Hi i am VIJAY "

when i open the text file i can see " Hi i am VIJAY"

But what i want is When i open the text file i want to see " Hi i am VIJAY 10:35 24/01/2010 "

is there any help i can find ?

View 3 Replies

Use The Time Part In Date Time Picker?

Mar 8, 2012

how do i use the time part in date time picker i am currently using vb.net2008 as my programming language?

View 14 Replies

Change Time Zone Using .NET 2.0?

Jan 14, 2010

How do I change the time zone using VB.NET 2.0? I found an article explaining how to do it in VB6 [URL] but I can't adapt it to .NET 2.0 - I just don't have enough expierience I guess.

View 4 Replies

Convert Date/time WMI?

Jun 15, 2010

how I can convert date time from dd/mm/yyyy HH:MM:SS to this format 19900101000000.000000+**** as used by WMI? I'm trying to set a schedule for an advertisement in ConfigMgr 2007 using vb.net.

View 3 Replies

How To Convert To Date And Time

May 7, 2012

tried every thing i could think of with no luck so far, i know its got to be some thing in the logic of the conversion but i just cant see it.every thing works except this.[code...]

View 5 Replies

Convert Excel Date To Sql Server Date Time Format Using ACE Provider?

Jun 24, 2011

I am attempting to import data in a batch from an Excel Worksheet to a Sql Server database. Everything works except for the one date field in the spreadsheet. The date returned is off by four years from the value in the spreadsheet. Example: The Excel sheet has a date 10/24/2010 14:18, but when I look at the column in my query, the date is 10/23/2006 2:18. This pattern, 4 years and 1 day earlier, is repeated for every row in the worksheet.

The Excel column comes to me as a custom type, formatted m/d/yyyy h:mm. I receive this from an outside vendor and having them change the column is not going to be my simplest solution.

For what it's worth, the relevent part of the query is:

Select [Date Created] From MyWorksheet

View 2 Replies

Token Privilege To Change Time Zone?

Jan 15, 2010

I'm trying to write code in .NET 2.0 to change the time zone - long story short its toautomate server deployment. I'm having a problem adding the SE_TIME_ZONE_NAME privilege I found code online to add the SE_SHUTDOWN_NAME privilege which I adapted into the following code:

Imports System.Runtime.InteropServices
Module ChangeTokenPrivs
Private Const ANYSIZE_ARRAY As Integer = 1

[code].....

View 1 Replies

Convert A Date And Time To Integer?

Apr 30, 2011

I'm trying to create a function which saves a file as the date and time in a integer value.[code]...

View 1 Replies

Convert String Do Date/time?

Apr 24, 2009

i have a datetime field and i want to query it, how to i convert textbox strings to datetime?

Expecting that the user will enter something like dd-mm-yyyy

View 2 Replies

Convert String To Date Time

Jun 17, 2011

[Code]...

I am trying to convert a string in the format "20110617111051" to date time. Currently I am using String.SubString() function to extract year, month, day, time to format a standard string and then using Convert.ToDateTime(string). Is there any other simple way to do this?

[Code]...

View 2 Replies

Convert Time/ Date Into String?

Mar 12, 2009

i have a project that using vb2008 to do a room reservation .here is my problems...i am using datetimepicker to get the date only.for time,i using 2 combo box. first combo box i put o 1-12 inside and Am/pM for another combo boxand i make the date that is get by the combobox as1) a table called bookings,inside bookings there are fields called userid,bookingid,startime,endtime,startdate,enddate)for (startime,endtime,startdate,enddate)field i`m using textSo now,i want to make a search on the (startime,endtime,startdate,enddate) field,from the datetimepicker,and that i enter to gain the empty room that available to book?

View 1 Replies

Oracle Sql Run Via .net I Get 'ORA-01857: Not A Valid Time Zone' Error

Apr 10, 2009

i am using Visual Studio 2008, .net 3.5sp1 When i do the following oracle query on Oracle9i database

a)select NEW_TIME( sysdate, 'EDT','EST') as NT from dual;it works ok on Sql Developer and from vb.net

b) select NEW_TIME( sysdate, EXTRACT(TIMEZONE_ABBR FROM CURRENT_TIMESTAMP),'EST') as NT from dual;

c) select NEW_TIME( sysdate, to_char(EXTRACT(TIMEZONE_ABBR FROM CURRENT_TIMESTAMP)),'EST') as NT from dual;

Both b) and c) work okay on Oracle Sql Developer but fail when run via vb.net with error: ORA-01857: not a valid time zone

I want either b) or c) to be run successfully from .net I also tried replacing 'sysdate' with 'current_timestamp' and the results are similar.

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved