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Parsing Date Time in C#, Getting wrong output

I am trying to parse the date by using below code
DateTime mydate = DateTime.ParseExact(datetoconvert,"dd/mm/yyyy",System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat);
but its output is wrong, the datetoconvert in above code is 30/Mar/2017 but output is 29/Jan/2017
looking forward for your valuable answers...

Lowercase mm means minute, use MM
DateTime mydate = DateTime.ParseExact(datetoconvert,"dd/MM/yyyy",System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat);
If you want to output it as 30/Mar/2017(different topic):
string result = mydate.ToString("dd/MMM/yyyy", CultureInfo.InvariantCulture);
But note that / has a special meaning too(in Parse and ToString). It will be replaced with your current cultures date-separator which seems to be / but fails with a different. You can avoid it by specifying CultureInfo.InvariantCulture or by masking it by wrapping it with apostrophes:
DateTime mydate = DateTime.ParseExact(datetoconvert,"dd'/'MM'/'yyyy",System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat);

replace
"dd/mm/yyyy"
with
"dd/MMM/yyyy"
because "Jan" is matched by MMM instead of mm (for minutes)
Reference
"MMM" The abbreviated name of the month.
https://msdn.microsoft.com/en-us/library/8kb3ddd4(v=vs.110).aspx

The date format is wrong. try "dd/MM/yyyy" instead of "dd/mm/yyyy"
If you need abbrivated month name, use "dd/MMM/yyyy"

Can not Parse string to DateTime in Windows Phone 7

I am trying to convert the string to DateTime. But I can not convert.
DateTime dt = DateTime.Parse("16/11/2014", CultureInfo.InvariantCulture);
Console.WriteLine("Date==> " + dt);
The error is FormatException.
My input time format is "dd/MM/yyyy".
Please let me any idea to resolve my problem.

Given that you know your input format, you should specify it with `ParseExact:
DateTime dt = DateTime.ParseExact(text, "dd/MM/yyyy",
CultureInfo.InvariantCulture);
I would always recommend being as explicit as you can be about date/time formats. It makes your intention very clear, and avoids the possibility of getting months and days the wrong way round.
As Soner has stated, CultureInfo.InvariantCulture uses MM/dd/yyyy as its short date pattern, as you can validate with:
Console.WriteLine(CultureInfo.InvariantCulture.DateTimeFormat.ShortDatePattern)
As a mild plug, you might want to consider using my Noda Time project for your date/time handling - aside from anything else, that allows you to treat a date as a date, rather than as a date and time...

Because InvariantCulture doesn't have dd/MM/yyyy as a standard date and time format, but it has MM/dd/yyyy as a standard date and time format.
That's why it thinks your string is MM/dd/yyyy format, but since there is no 16 as a month in Gregorian calender, you get FormatException.
Instead of that, you can use DateTime.TryParseExact method to specify exact format like;
string s = "16/11/2014";
DateTime dt;
if(DateTime.TryParseExact(s, "dd/MM/yyyy", CultureInfo.InvariantCulture,
DateTimeStyles.None, out dt))
{
}

How to parse a string into a date time format in C#

i have a string which contains date time this...
string S="08/18/2013 24:00:00"
DateTime DT = DateTime.ParseExact(S, "MM/dd/yyyy HH:mm:ss", null);
i want to parse it into date time but shows an exception like this.
The DateTime represented by the string is not supported in calendar System.Globalization.GregorianCalendar.
please tell me any solution for this problem.

The problem is with the hour being 24. DateTime doesn't support this, as far as I'm aware.
Options:
Use my Noda Time project which does support 24:00:00, but basically handles it by adding a day (it doesn't preserve a difference between that and "end of previous day")
Keep using DateTime, manually replace "24:00:00" with "00:00:00" when it occurs, and remember to add a day afterwards
If you want to preserve the information that it was actually "end of the day" you'd need to do that separately, and keep the information alongside the DateTime / LocalDateTime.
You should also parse with the invariant culture as other answers have suggested - you're not trying to parse a culture-specific string; you know the exact separators etc.

string S="08/18/2013 00:00:00"; // here is the first problem occurred
DateTime DT = DateTime.ParseExact(S, "MM/dd/yyyy hh:mm:ss", System.Globalization.CultureInfo.InvariantCulture);

From The "HH" Custom Format Specifier
The "HH" custom format specifier (plus any number of additional "H"
specifiers) represents the hour as a number from 00 through 23; that
is, the hour is represented by a zero-based 24-hour clock that counts
the hours since midnight.
So, using 24 as an hour is invalid on this case.
Try with hh format with 00 instead like;
string S = "08/18/2013 00:00:00";
DateTime DT = DateTime.ParseExact(S, "MM/dd/yyyy hh:mm:ss", CultureInfo.InvariantCulture);
Here a DEMO.
If you really want to use 24:00:00 as a hour, take a look Noda Time which developed by Jon.

Converting dd/mm/yyyy formatted string to Datetime [duplicate]

This question already has answers here:
Converting a String to DateTime
(17 answers)
Closed 9 years ago.
I am new to DotNet and C#. I want to convert a string in mm/dd/yyyy format to DateTime object. I tried the parse function like below but it is throwing a runtime error.
DateTime dt=DateTime.Parse("24/01/2013");
Any ideas on how may I convert it to datetime?

You need to use DateTime.ParseExact with format "dd/MM/yyyy"
DateTime dt=DateTime.ParseExact("24/01/2013", "dd/MM/yyyy", CultureInfo.InvariantCulture);
Its safer if you use d/M/yyyy for the format, since that will handle both single digit and double digits day/month. But that really depends if you are expecting single/double digit values.
Your date format day/Month/Year might be an acceptable date format for some cultures. For example for Canadian Culture en-CA DateTime.Parse would work like:
DateTime dt = DateTime.Parse("24/01/2013", new CultureInfo("en-CA"));
Or
System.Threading.Thread.CurrentThread.CurrentCulture = new CultureInfo("en-CA");
DateTime dt = DateTime.Parse("24/01/2013"); //uses the current Thread's culture
Both the above lines would work because the the string's format is acceptable for en-CA culture. Since you are not supplying any culture to your DateTime.Parse call, your current culture is used for parsing which doesn't support the date format. Read more about it at DateTime.Parse.
Another method for parsing is using DateTime.TryParseExact
DateTime dt;
if (DateTime.TryParseExact("24/01/2013",
"d/M/yyyy",
CultureInfo.InvariantCulture,
DateTimeStyles.None,
out dt))
{
//valid date
}
else
{
//invalid date
}
The TryParse group of methods in .Net framework doesn't throw exception on invalid values, instead they return a bool value indicating success or failure in parsing.
Notice that I have used single d and M for day and month respectively. Single d and M works for both single/double digits day and month. So for the format d/M/yyyy valid values could be:
"24/01/2013"
"24/1/2013"
"4/12/2013" //4 December 2013
"04/12/2013"
For further reading you should see: Custom Date and Time Format Strings

use DateTime.ParseExact
string strDate = "24/01/2013";
DateTime date = DateTime.ParseExact(strDate, "dd/MM/yyyy", null)
DateTime.ParseExact
null will use the current culture, which is somewhat dangerous. Try to supply a specific culture
DateTime date = DateTime.ParseExact(strDate, "dd/MM/yyyy", CultureInfo.InvariantCulture)

You can use "dd/MM/yyyy" format for using it in DateTime.ParseExact.
Converts the specified string representation of a date and time to its
DateTime equivalent using the specified format and culture-specific
format information. The format of the string representation must match
the specified format exactly.
DateTime date = DateTime.ParseExact("24/01/2013", "dd/MM/yyyy", CultureInfo.InvariantCulture);
Here is a DEMO.
For more informations, check out Custom Date and Time Format Strings

DateTime.TryParseExact parses the month in my date incorrectly as January

Below code snippet showing "07/01/2011" instead of "07/09/2011". Anything wrong with this code snippet?
Code Snippet:
DateTime result;
DateTime.TryParseExact(
"07/09/2011",
"dd-mm-yyyy",
new CultureInfo("en-GB"),
System.Globalization.DateTimeStyles.None,
out result);
// shows "07/01/2011"
MessageBox.Show(result.ToString());

mm is "Minutes". MM is month. Also, it shouldn't match anything, as in your date you're using / to separate the components and in the pattern you`re using dashes.
So either your date pattern should be dd/MM/yyyy or your date string should be like 07-09-2011.

The correct format string is dd/MM/yyyy

dd-mm-yyyy should be dd/MM/yyyy because mm stands for minutes and - does not equal / in TryParseExact.
Check: http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx