I am trying to parse a DateTime in C# and have the following lines of code:
string dt =Convert.ToString( DateTime.FromFileTime(e8.sts[counter8].TimeStamp));
string format = "dd-MM-yyyy HH:mm:ss";
DateTime dateTime = DateTime.ParseExact(dt, format,CultureInfo.InvariantCulture);
When I debug dt is coming in as 05/18/2011 09:25:17 AM but I get an expection saying:
String was not recognized as a valid
DateTime.
Starting off, you have no need for the conversion.
DateTime.FromFileTime(e8.sts[counter8].TimeStamp) returns a DateTime already...
Even so, with the string you have provided, DateTime.Parse(str) will take care of you.
If you end up storing this value in a text file, and really are dead-set on using a custom format string to parse it (which you don't need to):
The format you have:
Day/Month/Year 24-hour:minute:second
But looking at your input date:
05/18/2011 09:25:17 AM
You want:
Month/Day/Year 12-hour:minutes:seconds AM/PM
The format for what you want is:
MM/dd/yyyy hh:mm:ss tt
Isn't this expected? Date 05/18/2011 09:25:17 AM doesn't match your format string dd-MM-yyyy HH:mm:ss. Your date is in format MM/dd/yyyy HH:mm:ss tt.
Try this:
DateTime dateTime = DateTime.Parse("05/18/2011 09:25:17 AM");
I don't see any reason for the conversion. Just use:
DateTime.FromFileTime(e8.sts[counter8].TimeStamp)
Your DateTime is coming in as MM-dd-yyyy but you are trying to parse it as dd-MM-yyyy
Change your format string to "MM-dd-yyyy HH:mm:ss tt"
You can tell this as dt, using your current format string, is trying to be parsed as the 5th day (dd) of the 18th month (MM) of 2011 (yyyy)...
EDIT:
Sorry, I completely missed the AM/PM designator, you need the tt part of the format string. This will handle the AM/PM part of the string
EDIT 2:
As per your most recent comment, you want to convert it into MM-dd-yyyy HH:mm:ss string, the all you need to do is:
var outputString = DateTime.FromFileTime(e8.sts[counter8].TimeStamp).ToString("MM-dd-yyyy HH:mm:ss");
You already have the TimeStamp in a val;id .NET DateTime object, so all you need to do is perform a .ToString() with the required time format.
DateTime parsed = DateTime.ParseExact(dt,"MM/dd/yyyy HH:mm:ss tt",CultureInfo.InvariantCulture);
s many of the others have explained here, the format needs to be changed. However even when I tried the formats they have suggested, I still received the same error that you did. Eventually I hit upon the right format to get successful results.
The format should be:
string format = "MM/dd/yyyy HH:mm:ss tt";
because you are specifying time pattern such as AM. If the month is given as single digit, eg: 5, then MM should be replaced with M. I used slash instead of hypen between the dates because that's how the original date had been given.
Related
As title suggests, what I want to do is to convert my date-string e.g.
"6/6/2014 12:24:30 PM" (M/d/yyyy h:mm:ss tt) format
to
"YYYY-MM-DDThh:mm:ss.SSSZ" format.
I am trying in the following way. It's not giving me any exception, but I am getting the value like :
"YYYY-06-DDT12:24:30.SSSZ"
How can I exactly achieve this?
string LastSyncDateTime = "6/6/2014 12:24:30 PM";
DateTime dt = DateTime.ParseExact(LastSyncDateTime, "M/d/yyyy h:mm:ss tt",CultureInfo.InvariantCulture);
string result = dt.ToString("YYYY-MM-DDThh:mm:ss.SSSZ");
Data time Formats Can't recognize, the non Case sensitive chars in some systems due to their internal settings. Please refer the below code, which works fine
string result = dt.ToString("yyyy-MM-ddThh:mm:ss.SSSZ");
The above code will result as 2014-06-06T12:24:30.SSSZ
EDIT :
The below snippet will give you milliseconds as well
dt.ToString("yyyy-MM-ddThh:mm:ss.fffZ");
The simplest way is to use the "o" date formatter, like this:
dt.ToString("o");
This method will give you a timestring in the ISO 8601 format, something like this:
2014-12-25T11:56:54.9571247Z
but, since that ISO 8601 uses more than 3 decimal digits to define the second, if you only want to stop at milliseconds you can use the full formatting string and write down ss.fffzzz at the end, like this:
dt.ToString("yyyy-MM-ddThh:mm:ss.fffzzz");
and the result will be:
2014-12-25T11:56:54.957Z
For more informations you can refer to THIS LIST of date formatting options.
but I am getting the value like "YYYY-06-DDT12:24:30.SSSZ"
Let me explain why you get this result. Since there is no custom date and time format as YYYY, DD, SSS or Z, these characters are copied to the result string unchanged.
I strongly suspect you want to use yyyy, dd, fff and z format specifiers instead.
You can use DateTime.TryParseExact method like;
string s = "6/6/2014 12:24:30 PM";
DateTime dt;
if(DateTime.TryParseExact(s, "M/d/yyyy hh:mm:ss tt",
CultureInfo.InvariantCulture,
DateTimeStyles.None, out dt))
{
Console.WriteLine(dt.ToString("yyyy-MM-ddThh:mm:ss.fffz"));
}
Here a demonstration on Ideone.
Result will be 2014-06-06T12:24:30.000+3 on my machine because my time zone is UTC +3 right now. Time zone information might change based on your UTC value as well.
Try this -
dt.ToString("o");
dt.ToString("O");
you can see this link
hope this helps
You can use date in this format :("yyyy-MM-ddThh:mm:ss.000Z")
Or in manually by changing the time zone you can easily use the date set time zone to (GMT:000(Greenwich mean time)) in your setting tab and make sure data type is date/time.
Use yyyy for Year and dd for date
string result = dt.ToString("yyyy-MM-ddThh:mm:ss.SSSZ");
Here is the quick solution:
DateTime.UtcNow.ToString("yyyy-MM-ddThh:mm:ss.fffZ")
I'm not getting used to convert string to date, can someone help me?
String str = "2014-09-10T18:42:17";
DateTime datetime = DateTime.ParseExact(str, "dd/MM/yyyy HH:mm", CultureInfo.InvariantCulture);
Can you try this
DateTime datetime = DateTime.ParseExact(str, "yyyy-MM-ddTHH:mm:ss", CultureInfo.InvariantCulture);
The string format has to match exactly with the date format.
From MSDN, 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.
Exactly being the key word here. So in your example the exact string format would be:
2014-09-10T18:42:17
yyyy-MM-ddTHH:mm:ss
Have you looked at your source data? It's a date/time represented in ISO 8601 long form
2014-09-10T18:42:17
Your format specifier, on the other hand is looking for a string in the the form
dd/MM/yyyy HH:mm
where dd is the day of the month (01-31), MM is the month number (01-12), yyyy is the 4-digit year, HH is the hour of the day (00-23) and mm is the minute (00-59). It will match strings that look like
10/09/2014 18:42
If you want to match your source data, you need to use this format string:
yyyy-MM-ddTHH:mm:ss
You might try reading the documentation:
Standard Date and Time Format Strings
Custom Date and Time Format Strings
I have an issue similar to this > Format exception String was not recognized as a valid DateTime
However, my spec requires a date format of ddMMyyyy, therefore I have modified my code but I am still getting the same error
DateTime now = DateTime.Now;
DateTime dt = DateTime.ParseExact(now.ToString(), #"ddMMyyyy", CultureInfo.InvariantCulture);
I am unclear why.
You code fails because you are attempting to parse a date in the format ddMMyyyy, when by default DateTime.ToString() will produce a format with both date and time in the current culture.
For myself in Australia that would be dd/MM/yyy hh:mm:ss p e.g. 11/10/2013 11:07:03 AM
You must realise is that the DateTime object actually stores a date as individual components (e.g. day, month, year) that only needs to be format when you output the value into whatever format you desire.
E.g.
DateTime now = DateTime.Now;
string formattedDate = now.ToString("ddMMyyyy", DateTimeFormatInfo.InvariantInfo);
For more information see the api doc:
http://msdn.microsoft.com/en-us/library/8tfzyc64.aspx
For ParseExact to work, the string coming in must match exactly the pattern matching. In the other question you mentioned, the text was coming from a web form where the format was specified to be exactly one format.
In your case you generated the date using DateTime.Now.ToString() which will not be in the format ddMMyyyy. If you want to make the date round trip, you need to specify the format both places:
DateTime now = DateTime.Now;
DateTime dt = DateTime.ParseExact(now.ToString("ddMMyyyy"), #"ddMMyyyy", CultureInfo.InvariantCulture);
Debug your code and look at what the result of now.ToString() is, it's is not in the format of "ddMMyyyy", which is why the parse is failing. If you want to output now as a string in the ddMMyyy format, then try now.ToSTring("ddMMyyyy") instead.
now.ToString() does not return a string formatted in that way. Try using now.ToString("ddMMyyyy").
You might be better off testing with a static string like "30041999"
I have a string which needs to be converted and validated to a DateTime. The string is in the following format 'dd.mm.yy'
I am trying to convert it to DateTime using the following
string format = "dd.mm.yy";
date = DateTime.ParseExact(current.Substring(aiRule.AiLength), format,
CultureInfo.InvariantCulture);
but unfortunately this fails.
The question is how to convert a string in the format 'dd.mm.yy' to a DateTime ?
Thank you
mm means "minutes". I suspect you want "dd.MM.yy". See MSDN for more information about custom date and time format strings.
(In particular, read the part about the "yy" specifier and how it chooses which century to use. If you can possibly change the input to use a four digit year, that could save you some problems...)
the string format should be like this....
string Format = "dd.MM.yy"
mm is for showing minutes
MM is for showing months..
I hope it will helps you...
As earlier posts has already pointed out, mm means minutes and MM means months. I ran this test snippet and it works as expected:
string format = "dd.MM.yy";
string date = "27.10.11";
DateTime result;
result = DateTime.ParseExact(date, format, CultureInfo.InvariantCulture);
I'll tell something "heretical". If dd.MM.yy (with 2 or 4 yy) is the format of your local culture, then you could let the DateTime.Parse (not ParseExact!) do its work without setting it to CultureInfo.InvariantCulture, or perhaps setting it to your local culture like new CultureInfo("it-IT").
What Convert.DateTime will convert the date 7/25/2010 12:00:00 it's current format is(MM/dd/yyyy HH:mm:ss)?
When I convert this string format to date time I am getting the error "string was not recognized as valid DateTime"
None. Dates are not stored internally as a certain format.
If you want to parse a string into a date, use DateTime.ParseExact or DateTime.TryParseExact (the former will throw an exception if the conversion fails, the second uses an out parameter):
DateTime myDate = DateTime.ParseExact("7/25/2010 12:00:00",
"MM/dd/yyyy HH:mm:ss",
CultureInfo.InvariantCulture);
If you want to display a certain format, use ToString with the format string.
So, if you have a date object that represents midday of the 25th of July 2010 (doesn't matter how it is represented internally) and you want to format it with the format string "MM/dd/yyyy HH:mm:ss" you do the following:
string formattedDate = myDate.ToString("MM/dd/yyyy HH:mm:ss");
If you need to use Convert.DateTime, I'll assume you're working with a string you want to convert to a date. So you might try this:
DateTime date = Convert.DateTime("7/25/2010 12:00:00 am");
string formattedDateString = date.ToString("MM/dd/yyyy HH:mm:ss")
I'm making no assumptions as to why you'd want to do this, except that, well, you have your reasons.
DateTime.TryParse() or DateTime.Parse() will do the trick.
Edit: This is assuming that you are going from a string to a DateTime object.
Edit2: I just tested this with your input string, and I receive no error with DateTime.Parse