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How to get the date from the given string in c# [closed]

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I only need date from this string Wed, 02/05/2020 - 12:31 what format should I use whenever I am using
{MM/dd/yyyy} I am getting the same value if there is any other way please let me know
item.changed=Wed, 02/05/2020 - 12:31
`if (ListRecord.checkresponse == "Response Letters")
{
string checkresponse = item.changed;
string issueDate = string.Format("{0:MM/dd/yyyy}", checkresponse);
}`

To use date formatting, you need to start with a DateTime object, not a string.
So in your scenario you'll have to parse your string as a DateTime, then format it out again to a different string format. There's no way to directly format string -> string, all the logic about formatting is in the DateTime class.
Here's an example:
string changed = "Wed, 02/05/2020 - 12:31";
var checkresponse = DateTime.ParseExact(changed, "ddd, MM/dd/yyyy - HH:mm", CultureInfo.InvariantCulture);
string issueDate = string.Format("{0:MM/dd/yyyy}", checkresponse);
Console.WriteLine(issueDate);
Demo: https://dotnetfiddle.net/bhNImo
(Alternatively, since what you mainly want to do here is strip the first and last parts of the string and keep the date part, you could use a regular expression do to this from the string, but overall it's probably more reliably to use date parsing and formatting.)

Convert Time with milliseconds to dateTime in c# [closed]

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I am trying to convert Time string to DateTime but can't.
Example: Time: 12:05:45.458 with milliseconds need to convert to time.
Any solution?

DateTime.ParseExact should solve this
DateTime result = DateTime.ParseExact("12:05:45.458", "HH:mm:ss.fff", CultureInfo.InvariantCulture);

The DateTime.ParseExtract will parse the given time and convert to DateTime object with date as current date.
var dateTime = DateTime.ParseExact("12:05:45.458", "HH:mm:ss.fff", System.Globalization.CultureInfo.InvariantCulture);
Console.WriteLine(dateTime);

You are looking for a Timespan.Parse() here. Since you do not have any date component, it is not possible to unambiguously convert to a DateTime instance.

Simple solution:
string time = "12:05:45.458";
DateTime dateTime = DateTime.ParseExact(time, "HH:mm:ss.fff",
CultureInfo.InvariantCulture);

how to return DateTime instead of string along with 24hrs date/time format [closed]

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By default DateTime type in C# gave time in AM/PM format, but I would like to return 24 hrs time format and same time I want to return this DateTime type instead of string like below,
DateTime localTime = DateTime.Now;
string timeString24Hour = localTime.ToString("dd-MM-yyyy HH:mm:ss", CultureInfo.InvariantCulture) ;
instead of "string timeString24Hour" I want "DateTime timeString24Hour"
How to achieve this???

DateTime localTime = DateTime.Now;
That is a DateTime type in 24-hour format. A DateTime is a number representing all of the milliseconds since January 1, 1970. From it, you can convert to any part of time, or any string of time. If you want to use a DateTime, though - there is no inherent formatting to it until you need one by using
DateTime.Hours/DateTime.DayOfWeek/DateTime.Subtract(antoherDateTime).TotalSeconds
if/when you need time in a 24- hour format. Just use:
DateTime.ToString("HH:mm")
from here: How to format DateTime to 24 hours time?

By default DateTime is dispalyed in AM/PM in your culture.
Because the developement environment always uses the current culture to display DateTime
But that's only how it is being displayed. The value within DateTime is the same - culture independent.
By th way "mm/dd/yyyy HH:mm:ss" is invalid becasue mm are minutes and MM is for month

I presume you want something like String.Format :
DateTime localTime = DateTime.Now;
string timeString24Hour = String.Format("{0:dd-MM-yyyy HH:mm:ss.fff}", localTime);
Or shorter:
string timeString24Hour = String.Format("{0:dd-MM-yyyy HH:mm:ss.fff}", DateTime.Now);
You can find informations here : MSDN: Custom Date and Time Format Strings

DateTimeFormat issue [closed]

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I have a string like below
1/1/1970 12:00:00 AM
I want it in the yyyy-MM-dd format (in this case 1970-01-01)
My parsing code is
var actualDate = DateTime.ParseExact(actualValue,"MM/dd/yyyy HH:mm:ss tt",CultureInfo.InvariantCulture).ToString("yyyy-MM-dd");
But I keep getting the error, that the string is not recognized as a valid date time.
I looked at my variable actualValue and it is of type DateTime, so am thinking that the problem is with the format MM/dd/yyyy HH:mm:ss tt ,What is wrong with this?

First, you shouldn't be storing or fetching dates as text in the DB.
To your specific issue, however, MM and dd are the two-digit variety of month and day. Obviously your date text doesn't use the two-digit-only variety, so use M and d. Also, HH is on a 24-hour clock. Using tt, which is AM/PM, would imply not having a 24 hour clock, so you would want to use hh instead.
For more, look at MSDN for custom date/time formatting.

Converting convert the datetime in dd/MMM/yyyy to string in dd/MM/yyyy format C# [closed]

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I have a input variable with DateTime datatype in "03-Jan-2010" format I want to convert that in to a String type of dd/MM/yyyy format.How can this be done using C#.

Just use DateTime.ToString(string) method like;
datetime.ToString(#"dd\/MM\/yyyy");
Remember, "/" format specifier has a special meaning in custom date and time formatting as replace me current culture's or specified culture date separator. If your CurrentCulture's DateSeparator is already /, you can use it without escaping like;
datetime.ToString("dd/MM/yyyy");
or you can provide IFormatProvider which has / as a DateSeparator as a second parameter to your .ToString() method (ex: InvariantCulture ) like;
datetime.ToString("dd/MM/yyyy", CultureInfo.InvariantCulture);

string ddd= DateTime.Now.ToString("dd-MM-yyyy");
Visit: http://forums.asp.net/t/1820419.aspx?How+to+convert+dd+mm+yyyy+format+date+into+yyyy+dd+mm+in+C+

Please try following demo you will get what you want
string myDate = "03-Jan-2010";
DateTime dt = DateTime.Now;
DateTime.TryParseExact(myDate, "dd-MMM-yyyy", null, System.Globalization.DateTimeStyles.None, out dt);
string formattedDate = dt.ToString("dd/MM/yyyy");
Console.Write("Formatted Date : {0}", formattedDate);
Console.ReadKey();
Hope it works for you...