Web api datetime utc

Ints are easy.

Working with DateTime in ASP.NET Web API

Strings are mostly easy. A nightmare. They always will be. There's different calendars, different formats. Did you know it's in the Ethiopian Calendar? Yakatit 26,in fact. And I make a quick ASP. I am saddened as the date binding doesn't work, because the date was serialized by default like this.

Here's the JSON on the wire. My eyes! So, converting in PowerShell looks like:. I could add a bindingHandler for dates like this:. That works, but it's horrible and I hate myself.

web api datetime utc

It's lousy parsing and it doesn't even take the TimeZone into consideration. This is a silly format for a date to be in on the wire. I was talking to some folks on Twitter in the last few days and said that all this is silly and JSON dates should be ISOand we should all move on. We on the web team will be including JSON. He also added "please don't do what the twitterAPI does ruby strings.

Yes, so DON'T do it that way. Let's just do it the JavaScript 1. Here's Firefox, Chrome and IE. We're going to do this by default in ASP. NET on Henrik's blog.Most applications we build tend to have date and time data associated with it. If the application is not used just in a single location you are likely have to deal with times zones in your application. NET has a good set of date manipulation function, the various time zone conversion routines are a bit of a pain to use.

I find myself having to look up what functions need to be called and review my thinking about how to best manage dates frequently.

I see others struggling with this often as well, so I decided to take some time to write it down here in a post so I can find this info in one place.

Everything you need to know about Date-Time in Asp.NET & JSON.

Web apps typically require that dates are stored in time zone agnostic fashion. UtcNow or, if you are capturing user input dates converting the time zone specific dates to UTC dates using.

So in addition to converting to UTC you also need to be able to convert user local dates to and from specific time zones which you can do with TimeZoneInfo. You need two static methods from it: TimeZoneInfo. Also useful are TimeZoneInfo. ConvertTime which converts between two timezones and TimeZoneInfo. NET provides for time zone conversions. To use these extension methods is super easy.

The first one works by getting the value from a string:. The latter is important as you want to cache a TimeZoneInfo instance in order to reduce the overhead of looking up the TimeZoneInfo repeatedly when running these functions in a loop — like displaying a long list of items with dates in them. In order to properly convert user time zone values you need to figure out which time zone the user is coming from, so you you need to capture a preference for this and save it with a user.

I typically capture his as part of my User Admin Interface and let the user pick from a list of the available time zones. This looks something like this on my Profile form:.

The code to do this is pretty straight forward. I use ASP. The model binds to it and the value is stored in the database in this case in MongoDb.

The property stores the TimeZoneInfo. Id which is a value like Hawaiian Standard Time or Eastern Standard Time that can be used as keys for looking up timezones. The JavaScript Date object includes the time zone information in it when you write out the time to string:.

The time zone value uses official time zone string which is the same as the standard names that the. NET time zones use, so all we have to do is peel out the zone expressions in parenthesis and map that to our list box input.

This requires a little JavaScript to do. There are a few ways to do this. If you care about that, you can use RegEx in the JavaScript to clean up the date string and extract just the time zone string for a little cleaner URL. However, I prefer to do the parsing on the server so I just pass the whole messy date string up to the server in the URL.

Either way you have to get the data to the server in some way. Inside of the controller I can then check and convert this value to a proper time zone string with the following C ASP.I tried to convert the date in power query by using the function DateTimeZone. Someone could help me? Go to Solution. According to your description, you want to modify the utc timezone to your local timezone, right? If this is a case, you can use DateTimeZone. SwitchZone function or DateTime.

AddZone function to achieve your requirement. View solution in original post. The function DateTimeZone. SwitchZone handles this datetime zone change? But: Those from Australia with the appropriate Australian time zone, those from Europe The time has come: We are finally able to share more details on the brand-new ranks coming to the Power BI Community!

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Search instead for. Did you mean:. All forum topics Previous Topic Next Topic. Message 1 of 5. Accepted Solutions. Reference links: DateTimeZone. SwitchZone DateTime. Message 2 of 5. Thanks again.

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web api datetime utc

Message 4 of 5. Anonymous Not applicable. Everyone's tags 1 : Time Zone from Browser. Message 5 of 5. Helpful resources. New Ranks Launched March 24th! Learn more.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. The URL looks like. However I've found a work around of doing endDate. So, the same gets translated to a time based on your local clock and if you call ToUniversalTimeit gets converted back to UTC.

So, what exactly is the question? If the question is why is this happening if sent in as query string but not when posted in request body, the answer to that question is that ASP. For latter, it uses a media formatter. Since you have specified DateTimeZoneHandling. Utcit uses that setting and you get the date time kind you want. Localthen you will see the same behavior as model binding.

If you want the conversion to be transparent, then you could use a custom TypeConverter :. So, for those of you who do not wish to override string-to-date conversion in your entire application, and also don't want to have to remember to modify every method that takes a date parameter, here's how you do it for a Web API project. Learn more.

Asked 6 years ago. Active 7 months ago. Viewed 33k times. Johannes Rudolph 33k 12 12 gold badges silver badges bronze badges. Ryan Ryan 3, 1 1 gold badge 35 35 silver badges 69 69 bronze badges. Active Oldest Votes. Richard 3, 2 2 gold badges 27 27 silver badges 34 34 bronze badges. Badri Badri So I guess the correct thing to do is leave it the way it is and continue to convert the querystring dates back to UTC with the work around I have?

What's the best approach? This should be the answer, it's a very clear description of exactly what is happening. This should not be the answer.

web api datetime utc

Although it explains what is going on it doesn't provide a solution to the question. If this is not possible your answer does not make that clear, if it is you don't say how this can be achieved.

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I have the same question. I don't want to be calling ToUniversalTime every time I receive a date. I would like to just receive the UTC time. Is there some deserialization setting somewhere that will do this automatically?Date-Time data type is a complex issue. Complex enough to make you confuse overtime you are writing code that return dates from the web server to the browser.

NET, and what issues are related to them. I wanted to cover as well the issues with JavaScript date data type, but I will leave that to another post, because there are tons of issues that can be covered when it comes to JavaScript and date.

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If we add to the timezone, that the value can be from a different calendar than the GregorianCalendar, then we add more complexity to that abmiguity. In this post, I am going to avoid talking about different calendars, assuming that all dates are from the default us-en calendar the Gregorain canlendar. There are different formats that the industry came up with to Unamiguously represent a single point of time.

The web development industry came up with different solutions to have an Unambiguous representation of time values:. UTC is an Unambiguous representation of a single point of a time values, and a UTC time is the same for someone live in California to someone live in China.

There are plenty of date representation in the web, but the most famous and the one that was adopted by JavaScript on a large scale was the ISO This is an example of how ISO works.

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NET specially with version 4 and later has full support for dates, time zones, and converting between timezone, which help developers achieve all the date challenges they face. NET the following classes are involved or related to Date:.

C# Datetime Convert to GMT+ or UtcNow, Timezone fix

The DateTime class was the first introduced by. NET since version 1. You can specify the kind when you create the DateTime object, which is an optional parameter, like this:. The new structure DateTimeOffset structure was introduce to support dates with different timezones.

It is not a good practice to hard code the time offset -7 above, beside we could make mistakes because of daylight saving, and this is where we use the class TimeZoneInfo. For example we can rewrite the above code:.

To check all the time zones ID syou can find it here. To create a Date object in JavaScript there are these options:. NET and how Asp. NET from NewtonSoft. It is available through System. NET serializes the datetime to ISO format, and the following examples show how it serialize the date, assuming the local time is Pacific time -7 hours :.I was writing a website that tracked and displayed timestamps, and I only cared about what the time was on the client's machine.

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The server or database time was irrelevant. This seemed easy, just generate the timestamps on the client and I was all set, right?

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That was completely unnecessary since I was working with ISO dates which are now supported in all the major browsers. I also made sure when sending timestamps in my requests to call toISOString on the date object first.

Now I am always sending UTC dates to my sever, instead of local dates. I also made sure that I was never using DateTime. Now and instead used DateTime. UtcNow if I needed to generate a timestamp on the server.

To fix this, you can simply call DateTime. SpecifyKind timestamp, DateTimeKind. Utc for any timestamps read from the database. Since my model had timestamps everywhere, I simplified things by forcing all my timestamps to be read from and written to the database as UTC in a single location. It can identify a DateTime? I am makings use of 2 extension methods on the Object type, Get and Set which allows me to dynamically get and set values on my model.I would like to pass date type parameter to controller, can anybody advise how to do that?

Sample code will be much helpful. Jan 01, AM Rion Williams LINK There are a variety of ways to do this, but the simplest would just be to use a query string parameter that corresponds to the name of the parameter you are expecting to use :.

So then when you perform your POST, you'll hit your server-side PostDate method and see that the values were serialized into a DateTime parameter of the same name properly :. It is failing with this URL. Also, I would like to pass date along with time in UTC format.

Please advise. Ajax syntax to invoke the HTTP endpoint of the controller. Thank you for the response. Ajax call to the controller? I'm facing the same problems which is described at following URL. We're struggling a lot in passing the parameters to routing, like datetime value in UTC forminteger value, double value, string value etc. Using convention routing we can setup the default value as blank empty string for string parameters, but we failed to achieve the same via attribute routing.

Can you please advise how to make a common pattern to pass values either to attribute routing or convention routing? Also, how to pass : colon character in routing, we've the data which needs to be posted with this character too. So, do you know what is the best practice for passing the different types of parameter to routing?

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web api datetime utc

Related Links Guidance Samples Videos. Rion William Re: Web API 2. Any help would be much appreciated.


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