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How to convert datetime format in c#?

I want to convert the DateTime format using c#. This is my code
string date = "Thu May 20 2021 00:00:00 GMT-0700 (Pacific Daylight Time)";
var s = DateTime.ParseExact(date, "dd-MM-yyyy HH:mm:ss", null);
But this code not working the exception is 'System.FormatException: 'String was not recognized as a valid DateTime.'

The format you provide must match with the format used in the string. Hence the name ParseExact. After playing around a bit I was able to match these:
string date = "Thu May 20 2021 00:00:00 GMT-0700"
var s = DateTime.ParseExact(date, "ddd MMM dd yyyy HH:mm:ss \"GMT\"zzz", null);
You may need to manually truncate the (Pacific Daylight Time) or include it in the format as a literal (like I did with GMT here).
For more information you can work with DateTime format specifiers

Your format string means that the date value must be something like that:
string date = "20-05-2021 12:00:00";
var s = DateTime.ParseExact(date, "dd-MM-yyyy HH:mm:ss", null);
Try to use an other date value or change the date format string.
You can find a lot of good examples here:
https://learn.microsoft.com/en-us/dotnet/api/system.datetime.parseexact?view=net-5.0#System_DateTime_ParseExact_System_String_System_String_System_IFormatProvider_

Parse DateTime From Odd Format [duplicate]

This question already has an answer here:
Closed 10 years ago.
Possible Duplicate:
Parsing a complicated string as DateTime
I have a string date with time that I'd like to parse into a DateTime. I'm not quite sure how to tackle it because of the odd format. Help is appreciated.
Example: Mon Mar 24 13-42-30 2008

DateTime.ParseExact should do what you want:
var dateTime = DateTime.ParseExact(
"Mon Mar 24 13-42-30 2008",
"ddd MMM dd HH-mm-ss yyyy",
CultureInfo.CurrentCulture);
Can someone tell me the difference between using CultureInfo.CurrentCulture and CultureInfo.InvariantCulture, like the other answers? I was assuming things like the day name and month name might need to be parsed in their native language. Thanks.

Try:
var theDate = DateTime.ParseExact(
"Fri Jul 13 13-42-30 2012",
"ddd MMM dd HH-mm-ss yyyy",
System.Globalization.CultureInfo.InvariantCulture);
Date string formatting options can be found here.

That format doesn't seem all that odd, but you could probably easily handle it by using DateTime.ParseExact(). Of course, it assumes that the format remains the same.

try this way please
string format ="ddd MMM dd hh-mm-ss yyyy";
DateTime dt = DateTime.ParseExact(format, dateString, CultureInfo.InvariantCulture);

Can this date be converted automatically?

I know that C# has some great date conversion tools. What I'm I'm wondering is if I can automatically convert this string to a date object:
"Fri May 11 00:00:00 EDT 2012"
I'm thinking I'll have to manually parse the month, day, and year but I'm hoping there is an easier way built-in. Any help would be appreciated.
Thanks!

You can use DateTime.ParseExact or DateTime.TryPraseExact to provide a custom format:
DateTime result;
if (!DateTime.TryParseExact(
"Fri May 11 00:00:00 EDT 2012",
"ddd MMM dd HH:mm:ss EDT yyyy",
CultureInfo.InvariantCulture,
DateTimeStyles.None,
out result)) {
// handle invalid date
}
All of the format options are listed on the Custom Date and Time Format Strings page on MSDN.

Convert.ToDateTime("Fri May 11 00:00:00 EDT 2012") should work just fine.

http://msdn.microsoft.com/en-us/library/xhz1w05e.aspx
Take a look at that. Should help you out.
Example:
// Convert a string returned by DateTime.ToString("R").
String dateString = "Sat, 10 May 2008 14:32:17 GMT";
ConvertToDateTime(dateString);

Yes, you can parse the string into a DateTime object :
String format = "ddd MMM dd hh:mm:ss EDT yyyy";
String dateString = "Fri May 11 00:00:00 EDT 2012";
DateTime result = DateTime.ParseExact(dateString, format, CultureInfo.InvariantCulture);

How to convert 31/03/2011 00:00:00 date format to 31 Mar 2011 in C#

I have got below date format in my result,I am using C# 2.0
ExpiryDate = "31/03/2011 00:00:00";
spnExpiryDate.InnerHtml = ExpiryDate;
Now when I am going to show this in HTML it should be converted to 31 Mar 2011 format.
Please suggest!

First, parse the string to a DateTime, and then format it using the DateTime's ToString:
DateTime myDateTime = DateTime.Parse( "31/03/2011 00:00:00" );
spnExpiryDate.InnerHtml = myDateTime.ToString("dd MMM yyyy");

This should do it:
var culture = System.Globalization.CultureInfo.CreateSpecificCulture("en-GB");
spnExpiryDate.InnerHtml = DateTime.Parse(ExpiryDate, culture).ToString("d MMM yyyy");
You can leave out the culture bits if your server's default culture is already dd/mm/yyyy.

First parse date then format how you need:
DateTime dt = DateTime.Parse("31/03/2011 00:00:00");
.InnerHtml = String.Format("{0:dd MMM yyyy}", dt);
There is good link that i use almost everytime when i need format date.
Also check this aswer about extention method for datetime formatting.

at first parse your string to DateTime
var date = DateTime.Parse("31/03/2011 00:00:00", "dd/mm/yyyy HH:mm:ss");
then user method "ToString"
date.ToString("dd MMM yyyy")

You didn't say how you are outputting it, but basically you want to provide the format when you call the ToString:
aTextBox.Text = myDate.ToString("dd MMMM yyyy");

The another way is
CultureInfo.CurrentCulture.DateTimeFormat.GetMonthName(DateTime.Now.Month);
gives you Month Name

How to parse DateTime in this format? "Sun May 23 22:00:00 UTC+0300 2010"

This is a quick one, i wanna parse a date that comes in this format "Sun May 23 22:00:00 UTC+0300 2010"
Is this a valid UTC DateTime? And how to parse it? I tried :
DateTime newStartTime = DateTime.ParseExact(hdnNewStartTime.Value, "ddd MM dd HH:mm:ss UTC+0300 yyyy", CultureInfo.CurrentCulture);
However, this didn't work, any help appreciated!

DateTime dt = DateTime.ParseExact(s,"ddd MMM dd HH:mm:ss UTCzzzz yyyy", System.Globalization.CultureInfo.InvariantCulture);

Its not a standard format, but you can still parse it.
string format = "ddd mmm dd HH:mm:ss zzzzz yyyy";
string temp = "Sun May 23 22:00:00 UTC+0300 2010";
DateTime time = DateTime.ParseExact(temp, format, CultureInfo.InvariantCulture);

This isn't in a standard .NET format, so you'll probably have to parse it by hand. The UTC+0300 bit indicates the timezone, everything else is part of the date and time.

I tried the solution presented by #johncatfish and it does what I expect. I would presume that you actually want to keep the timezone information.
[Test()]
public void TestCaseWorks ()
{
string format = "ddd MMM dd HH:mm:ss UTCzzzzz yyyy";
string temp = "Sun May 23 22:00:00 UTC+0300 2010";
DateTime time = DateTime.ParseExact(temp, format, CultureInfo.InvariantCulture);
Assert.AreEqual(DayOfWeek.Sunday, time.DayOfWeek);
Assert.AreEqual(5, time.Month);
Assert.AreEqual(23, time.Day);
Assert.AreEqual(0, time.Minute);
Assert.AreEqual(0, time.Second);
Assert.AreEqual(2010, time.Year);
// Below is the only actually useful assert -- making sure the
// timezone was parsed correctly.
// In my case, I am GMT-0700, the target time is GMT+0300 so
// 22 + (-7 - +3) = 12 is the expected answer. It is an exercise
// for the reader to make a robust test that will work in any
// timezone ;).
Assert.AreEqual(12, time.Hour);
}

Sorry for my previous answer which was quite simplistic.
Replace MM by MMM in your date format and it should be fine.

From the example given, it isn't possible to tell if the month should be in the 3 letter form (Jan, Feb, May etc.) or in the full form (January, February, May etc.).
If it should be in the short form, use:
ddd MMM dd HH:mm:ss UTCzzz yyyy
If it should be in the long form, use:
ddd MMMM dd HH:mm:ss UTCzzz yyyy
Details of the formatting specifiers available can be found at http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx