[c#] Why can't DateTime.Parse parse UTC date

Why can't it parse this:

DateTime.Parse("Tue, 1 Jan 2008 00:00:00 UTC")

This question is related to c# datetime parsing

The answer is

Just use that:

var myDateUtc = DateTime.SpecifyKind(DateTime.Parse("Tue, 1 Jan 2008 00:00:00"), DateTimeKind.Utc);

if (myDateUtc.Kind == DateTimeKind.Utc)
     Console.WriteLine("Yes. I am UTC!");

You can test this code using the online c# compiler:


I hope it helps.

Not sure why, but you can wrap DateTime.ToUniversalTime in a try / catch and achieve the same result in more code.

Good luck.

or use the AdjustToUniversal DateTimeStyle in a call to

DateTime.ParseExact(String, String[], IFormatProvider, DateTimeStyles)

You need to specify the format:

DateTime date = DateTime.ParseExact(
    "Tue, 1 Jan 2008 00:00:00 UTC", 
    "ddd, d MMM yyyy HH:mm:ss UTC", 

I've put together a utility method which employs all tips shown here plus some more:

    static private readonly string[] MostCommonDateStringFormatsFromWeb = {
        "yyyy'-'MM'-'dd'T'hh:mm:ssZ",  //     momentjs aka universal sortable with 'T'     2008-04-10T06:30:00Z          this is default format employed by moment().utc().format()
        "yyyy'-'MM'-'dd'T'hh:mm:ss.fffZ", //  syncfusion                                   2008-04-10T06:30:00.000Z      retarded string format for dates that syncfusion libs churn out when invoked by ejgrid for odata filtering and so on
        "O", //                               iso8601                                      2008-04-10T06:30:00.0000000
        "s", //                               sortable                                     2008-04-10T06:30:00
        "u"  //                               universal sortable                           2008-04-10 06:30:00Z

    static public bool TryParseWebDateStringExactToUTC(
        out DateTime date,
        string input,
        string[] formats = null,
        DateTimeStyles? styles = null,
        IFormatProvider formatProvider = null
        formats = formats ?? MostCommonDateStringFormatsFromWeb;
        return TryParseDateStringExactToUTC(out date, input, formats, styles, formatProvider);

    static public bool TryParseDateStringExactToUTC(
        out DateTime date,
        string input,
        string[] formats = null,
        DateTimeStyles? styles = null,
        IFormatProvider formatProvider = null
        styles = styles ?? DateTimeStyles.AllowWhiteSpaces | DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal; //0 utc
        formatProvider = formatProvider ?? CultureInfo.InvariantCulture;

        var verdict = DateTime.TryParseExact(input, result: out date, style: styles.Value, formats: formats, provider: formatProvider);
        if (verdict && date.Kind == DateTimeKind.Local) //1
            date = date.ToUniversalTime();

        return verdict;

        //0 employing adjusttouniversal is vital in order for the resulting date to be in utc when the 'Z' flag is employed at the end of the input string
        //  like for instance in   2008-04-10T06:30.000Z
        //1 local should never happen with the default settings but it can happen when settings get overriden   we want to forcibly return utc though

Notice the use of '-' and 'T' (single-quoted). This is done as a matter of best practice since regional settings interfere with the interpretation of chars such as '-' causing it to be interpreted as '/' or '.' or whatever your regional settings denote as date-components-separator. I have also included a second utility method which show-cases how to parse most commonly seen date-string formats fed to rest-api backends from web clients. Enjoy.

To correctly parse the string given in the question without changing it, use the following:

using System.Globalization;

string dateString = "Tue, 1 Jan 2008 00:00:00 UTC";
DateTime parsedDate = DateTime.ParseExact(dateString, "ddd, d MMM yyyy hh:mm:ss UTC", CultureInfo.CurrentCulture, DateTimeStyles.AssumeUniversal);

This implementation uses a string to specify the exact format of the date string that is being parsed. The DateTimeStyles parameter is used to specify that the given string is a coordinated universal time string.

Assuming you use the format "o" for your datetime so you have "2016-07-24T18:47:36Z", there is a very simple way to handle this.

Call DateTime.Parse("2016-07-24T18:47:36Z").ToUniversalTime().

What happens when you call DateTime.Parse("2016-07-24T18:47:36Z") is you get a DateTime set to the local timezone. So it converts it to the local time.

The ToUniversalTime() changes it to a UTC DateTime and converts it back to UTC time.

It's not a valid format, however "Tue, 1 Jan 2008 00:00:00 GMT" is.

The documentation says like this:

A string that includes time zone information and conforms to ISO 8601. For example, the first of the following two strings designates the Coordinated Universal Time (UTC); the second designates the time in a time zone seven hours earlier than UTC:


A string that includes the GMT designator and conforms to the RFC 1123 time format. For example:

Sat, 01 Nov 2008 19:35:00 GMT

A string that includes the date and time along with time zone offset information. For example:

03/01/2009 05:42:00 -5:00

Just replace "UTC" with "GMT" -- simple and doesn't break correctly formatted dates:

DateTime.Parse("Tue, 1 Jan 2008 00:00:00 UTC".Replace("UTC", "GMT"))

Examples related to c#

How can I convert this one line of ActionScript to C#? Microsoft Advertising SDK doesn't deliverer ads How to use a global array in C#? How to correctly write async method? C# - insert values from file into two arrays Uploading into folder in FTP? Are these methods thread safe? dotnet ef not found in .NET Core 3 HTTP Error 500.30 - ANCM In-Process Start Failure Best way to "push" into C# array

Examples related to datetime

Comparing two joda DateTime instances How to format DateTime in Flutter , How to get current time in flutter? How do I convert 2018-04-10T04:00:00.000Z string to DateTime? How to get current local date and time in Kotlin Converting unix time into date-time via excel Convert python datetime to timestamp in milliseconds SQL Server date format yyyymmdd Laravel Carbon subtract days from current date Check if date is a valid one Why is ZoneOffset.UTC != ZoneId.of("UTC")?

Examples related to parsing

Got a NumberFormatException while trying to parse a text file for objects Uncaught SyntaxError: Unexpected end of JSON input at JSON.parse (<anonymous>) Python/Json:Expecting property name enclosed in double quotes Correctly Parsing JSON in Swift 3 How to get response as String using retrofit without using GSON or any other library in android UIButton action in table view cell "Expected BEGIN_OBJECT but was STRING at line 1 column 1" How to convert an XML file to nice pandas dataframe? How to extract multiple JSON objects from one file? How to sum digits of an integer in java?