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.
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?
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..
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.
I need to basically search for either a string such as "I-AM-RIGHT-OVER-HERE" or search for a sequence of bytes and return the offset of where that string or byte sequence is at.
I need to calculate the location of intersections between multiple date ranges, and the number of overlapping intersections. Then I need to show which date/time ranges overlap each of those intersecting sections. It is slightly more complicated than that so I'll do my best to explain by providing an example. I am working in VB.Net, but C# examples are acceptable as well as I work in both.
We have several high risk tasks that involve the same system. Below I have three example jobs named HR1/2/3/4 with start and end date/times.
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.
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:
I was reading this article about relative time calculation
The problem is that the results are wrong due to the time offset. My webpage is Greek.So how should i modify that function to work correctly, including the GMT+2 or GMT+3 hours offset?
How to search a dump.bin for a pattern then take the offset it is at, i.e. 8DB358 and search that string as hex? Here is an example of what was being done without a program for it:[URL]..I'm making debug codes for a gaming system... I'm Using visual basic 2008 express edition on windows vista
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?
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
I have two tables: a schedule table that contains information about how an employee is scheduled and a numbers table in which each number corresponds to a date.
[Code]...
I can do this on the SQL side or the code side. I have Linq at my disposal if I need it. The table doesn't need to be compiled by SQL. This will happen dynamically on a website and should be as efficient as possible.I don't want to have to iterate through each and look for breaks in contiguous days if I don't have to.
In my last "Question" today Re-ComboBox", I was told that I can add the actual TimeZones into the ComboBox using the following; ComboBox1.Items.AddRange(TimeZoneInfo.GetSystemTimeZones. ToArray) I was able to get the ComboBox filled with those information. However, I'm facing a problem in using those information for my "Sunrise Tme" program.
My problem is : I need to add the "Time Zone" (is declared as Double) - which I select in the ComboBox - to the Calculated Time (in GMT). I am unable to get the Value added to the GMT, ie the Value such as 2.5 or 5.5 or 6.0, because the information in the ComboBox is of several Data-type. Keyword such as "CDbl" didn't work. What mistake am I making?
I have a Huawei E156G 3G dongle and i want to use it to find my current location using VB or C# like it happened in google maps for mobile. Can i use AT Commands to achieve this or is this possible.
I want to get the border of the form when its load but how? Then I'll compare between the form location and the mouse ,if the mouse out of the form, the visibility is false when the mouse move or key press up /down and become in the form border, the form visibility must be true. How to find the x and y values to the form?
I have a aspx project, I'm using web developer 2005. I am currently trying to locate the exact location of my project. I have no clue how to do it as I only know the intranet address. like the localhost and all. I need to find out the exact location of the project from the intranet address which is only any name. Is there anyway to find out?
Is it possible to develop a program in vb.net which can find the location of vehicle in a cctv camera range?if possible ,what are the APIs and technologies used for it?can any one suggest any link or the steps involved in this process...?
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:
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)
i am using date time picker and i am selecting 1 date from calender.after selection of that date i want to refresh date time picker i.e. it should display todays date.
I have an Sql server 2005 table called Emploeefl with 2 fields, EmployeeCode and Date of Birth. The data type for the date of birth is Datetime. I have a Date time picker on a vb.net 2005 form called dtDateOfbirth. When I click on the save button I get the error message "Conversion from string 'yyyy/MM/dd' is not valid. Below is the code
Dim newQE_Date As Date newQE_Date = Format(Me.dtDateOfBirth.ToString, "yyyy/MM/dd") 'newQE_Date = String.Format("2008/09/10", "yyyy/MM/dd")
I am working on a code where I need to add 21 years to the date 02/15/1957 and have it display the week day of that year. I have been looking at different web sites for visual basic
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?
The problem that I'm having is that when I try to select a different date, the text doesn't go away. That may make no sence, but let me tell y'all what I've done.
1: Created a GroupBox 2: Put a DateTimePicker in the GroupBox 3: Put TextBoxs in the GroupBox 4: Changed the DateTimePicker to look like this: A)Checked - False B)Allow Drop - True
I thought that if I changed that, then the text in the text box would go to that specific date. It didn't do that, it just stays the same. What I'm trying to do is enter text in say 3/7/11 and when I choose date 6/12/12 it will display blank text boxes for me to enter something different.
