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DateTime.TryParse() not working with formatted date dd/MM/yyyy

This code returns (min time 1/1/0001 12:00:00 AM) not Date.Time.Now . Try Parse works for MM/dd/yyyy but not dd/MM/yyyy . Any suggestions
Here is code
DateTime start, end;
DateTime.TryParse(EPSDate12.Text, out start);
string TNow = DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss"); // Works
// string TNow = DateTime.Now.ToString();// works but gives MM/dd/yyyy as expected
DateTime.TryParse(TNow, out end); // No. gives min time (1/1/0001 12:00:00 AM)

Use TryParseExact and supply the format string.
Also examine the return value from TryParseExact to know if it failed or not (it returns a bool)
I see "EPSDate12.Text" which i suspect may be a TextBox: If you're doing this in a UI, make life easy and use a DateTimePicker - you can set the format, the user can type into them just like a textbox, but they don't accept invalid inputs, and all you have to do is get the .Value property which gives you a DateTime
As to why your attempts to parse the string you made don't work, I think it most likely that the date format Parse is using (which is based on the culture settings of the executing thread) is not the same format as the string you prepared using your forced format. Either make sure your forced format is matched to the current culture, or use a culture that matches your forced format, or use [Try]ParseExact to force the format for parsing like you did when creating the string
See https://learn.microsoft.com/en-us/dotnet/api/system.datetime.parse?view=net-5.0#Culture for more info

The datetime value is internally the same. But, ToString() return value, depends on
the local machine culture setup.
Reference article
The default DateTime.ToString() method returns the string
representation of a date and time value using the current culture's
short date and long time pattern. The following example uses the
default DateTime.ToString() method.
For en-US culture(MM/dd/yyyy hh:mm:ss) , it will be in
7/28/2021 11:37:40 AM
If you want to see in en-GB(dd/MM/yyyy hh:mm:ss), you can apply conversion as given below:
var culture = new CultureInfo("en-GB");
MessageBox.Show($"{DateTime.Now.ToString(culture)}");
28/07/2021 11:45:09 AM
you can also specify exact custom format, in which you want to display.
MessageBox.Show($"{DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss tt")}");
28/07/2021 11:45:09 AM

Thanks for suggestions . Yes DateTime.TryParse is not working and it could be format issue
This line of code.
string TNow = DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss");
generates
29/07/2021 14:49:03
which looks OK but fails TryParse

Flexible DateTime parsing on multi culture web application

I have an ASP.NET web application which is multi culture meaning I have en-us, en-ca, fr-ca, etc.
My problem is when I am trying to Parse a date 1/22/2014 using DateTime.Parse and I am using en-us, it will work because the ShortDatePattern of en-us is M/dd/yyyy but if the user is en-ca, the ShortDatePattern is dd/MM/yyyy.
How can I parse the dates considering different cultures? I have tried the following codes:
DateTime.Parse(date);
DateTime.ParseExact(date, ShortDatePattern, Culture);
DateTime.TryParseExact(date, ShortDatePattern, Culture, DateTimeStyles.None, out date);
But still no luck for me.
EDIT
DateTime.Parse throws me an exception, string is not a valid datetime. Same with the DateTime.ParseExact. DateTime.TryParseExact give me a date of 1/1/0001.

If you're absolutely sure of the user's culture - and that they'll actually use that - you could use:
// I assume that Culture is a valid reference to a CultureInfo...
DateTime date = DateTime.Parse(date, Culture);
However, I'd strongly consider providing a calendar control or separate year/text-month/day fields on the page (with validation) so that what you post back to ASP.NET can be a machine-readable, culture-neutral date format, e.g. yyyy-MM-dd. Basically, turn the culture-sensitive representation into a culture-neutral representation as early as you can.

If the user can choose multiple languages within your application, I would think it would be easier to cater for the multiple language choices.
Here is what I did sometime ago:
DateTime dateValue = DateTime.Parse(dateVar.ToString());
string currentCulture = XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IeftLanguageTag).ToString();
CultureInfo culture = new CultureInfo(currentCulture);
Console.WriteLine(dateValue.ToString("d", culture));
DateVar being the date value that you want to convert to new culture.
The above code makes use of the System.Windows.Markup namespace
Just change Console.WriteLine your preferred output display.

Output DateTime date but no time using only CultureInfo

My code:
dateObject.Value.ToString(Model.Culture)
dateObject is of type DateTime? while Model.Culture is of type CultureInfo.
The (culture dependent) output:
17/08/1960 00:00:00
I'd like to remove the 00:00:00 part without having to specify any format provider.
Model.Culture should contains the format for the date already while somewhere else (but where and how?) I'd like to specify not to output any time.
I was thinking to cast DateTime over a Date object but, unfortunately, there is no such object in C#.
Hardcoding the date format directly will result in the impossibility to create a dynamic and culture dependent program.

" without having to specify any format provider"
...
"Hardcoding the date format directly will result in the impossibility to create a dynamic and culture dependent program."
You can use the overload that enables to provide a format string and the culture:
string result = dateObject.Value.ToString("d", Model.Culture);
or you change the culture if that is desired/possible:
System.Threading.Thread.CurrentThread.CurrentCulture = Model.Culture;
string result = dateObject.Value.ToShortDateString();

Maybe you are looking for this:
dateObject.Value.ToString("d", Model.Culture)

Use ToShortDateString it uses the current thread culture.
DateTime dateObject = DateTime.Now;
string s = dateObject.ToShortDateString();

Try the following using string formatting
dateObject.ToString("dd/MM/yyyy");
DATE FORMATS

Unable to parse date time in C#

I know such questions are in ton here. Please go through once
I have a string coming from textbox having current date e.g. 10/9/2012, my class property is of DateTime? type. I am using Convert.ToDateTime(datetime_string_from_textbox) but it gives me a FormatException. I then tried DateTime.ParseExact(string, format, CultureInfo, DateTimeStyle) as suggested by Jon Skeet here but still it gave me the same exception.
One more thing — my local machine date time format is dd-mm-yyyy. When I switch this to mm/dd/yyyy format the code works fine. So basically , I want to know how to parse a valid datetime string to a DateTime object irrespective of the regional settings, or any settings or any dependency on local machine.
Is this possible?
Update : Code in use
employee.JoiningDate = DateTime.ParseExact(string.Format("{0} 00:00:00", JoiningDate.Text.Trim()), "MM/dd/yyyy hh:mm:ss", CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeUniversal);
Existing Problem and Required Solution
My system datetime shows 24-10-2012 (that is, 24th Oct) and I have 10/17/2012 in my text box (that is, 17th Oct) since the text box date is also valid and after deployment again the client datetime format will become unknown so, I want a generic way to parse any valid datetime string irrespective of regional settings. Is this possible?

This should work:
var date = DateTime.ParseExact(str, "M/d/yyyy", CultureInfo.InvariantCulture);
As tested bellow: 

Try formatting your date to international date format using this method:
How would you format DateTime in international format?
Also you can check this for your current culture:
Set Default DateTime Format c#

It totally depends on the machine settings. DateTime.ParseExact(str, "dd/MM/yyyy", CultureInfo.InvariantCulture); will work for British format but it will give format exception on US format. So use format according to your machine settings.

Try the following if it works
var formatInfo = new DateTimeFormatInfo();
formatInfo.ShortDatePattern = "MM/dd/yyyy";
DateTime.Parse(date, formatInfo);

How to make DateTime independent from the current culture?

I cam trying to convert a datetime to string and back, but making it so that it works for all cultures.
I basically have a Textbox (tbDateTime) and a label (lbDateTime). The label tells the user, in which format the software expects the input of tbDateTime. The input of the Textbox will be used for an MySQL command.
Currently it works like this:
lbDateTime.Text = "DD.MM.YYYY hh:mm:ss"; // I live in germany
DateTime date = Convert.ToDateTime(tbDateTime.Text);
String filter = date.ToString("yyyy-MM-dd HH:mm:ss");
Now my question:
Is it possible to determine the format-string for lbDateTime.Text based on the current culture?
Which format does the Convert.ToDateTime function uses?
I hope you can help me. I have actually no pc here to test different cultures, so I'm very afraid that I make something wrong.

Instead of using the Convert.ToDateTime method you can use the DateTime.Parse or DateTime.ParseExact methods. Both allow you to pass a culture that tells how you expect the date to be formatted.
The DateTime.ParseExact method also allows you to specify the format you expect, so you can parse more or less any format with this method.
Edit:
Regarding Convert.ToDateTime. The documentation says that the current culture is used when parsing: http://msdn.microsoft.com/en-us/library/xhz1w05e.aspx
The current culture can be found using the System.Threading.Thread.CurrentThread.CurrentCulture property.
Edit2:
Oh. You may also want to use DateTime.TryParse and DateTime.TryParseExact if you are unsure whether the given format is invalid.
Edit3:
Lots of edits here... I see that you want to determine the culture string that matches the date the user has entered. There is no general solution that is guaranteed to work here. Say for instance that the user has entered the date 01.02.11. There is no way to be certain if this date is in day.month.year or month.day.year or year.month.day and so on.
The best you can do is to have a list of expected input cultures and start with the most likely and try to parse the date using that. If that fails, you can try the second most likely and so on...
But this is really not recommended. Either give the user an expected format, or better, use a date input box that ensures that you receive the selected date in an appropriate format.

The Convert.ToDateTime method will call DateTime.Parse to parse the string, using the current culture (CultureInfo.Current).
You can specify a culture when parsing the string. Example:
DateTime data = DateTime.Parse(tbDateTime.Text, new CultureInfo("en-GB"));
You can use DateTime.ParseExact (or DateTime.TryParseExact) to parse the string using a custom date format. Example:
DateTime data = DateTime.ParseExact(tbDateTime.Text, "dd'.'MM'.'yyyy HH':'mm':'ss", CultureInfo.InvariantCulture);

Another solution :
// Specify the current language (used in the current system you are working on)
CultureInfo currentCulture = CultureInfo.GetCultureInfo(CultureInfo.CurrentCulture.ToString());
// Specify the language that we need
CultureInfo myLanguage = CultureInfo.GetCultureInfo("en-US");
// Adapt the DateTime here, we will use the current time for this example
DateTime currentDate = DateTime.Now;
// The date in the format that we need
string myDate = DateTime.Parse(currentDate.ToString(), currentCulture).ToString(myLanguage);