The international string representation format is (YYYY-MM-DD HH:MM:SS ±HHMM).
e.g. 2010-06-10 21:21:10 -0400
basically the problem I am having is figuring out how to get the difference from GMT.
DateTime dt = new DateTime(2008, 3, 9, 16, 5, 7, 123);
String.Format("{0:yyyy-MM-dd HH:mm:ss ????}", dt);
DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss zzz");
will output:
2010-06-29 08:25:16 -07:00
string isoFormat = inputDateTime.Format("s");
I would go with ISO format.
And the W3C has also a note on the topic: Date and Time Formats.
These are international standards.
You want to use DateTimeOffset.
I think that is shown in the hours. That -4 is the difference from GMT.
Oh I see, sorry misunderstood the question.
How would you format DateTime in international format?
You can use a custom format specifier (there is no standard formats for ISO standard date/time formats).
the problem I am having is figuring out how to get the difference from GMT.
Parse using one of DateTimeOffset's static methods, and then check the Offset property.
Or if you mean, how to include the offset in the string: use DateTimeOffset with the correct timezone and a custom format specifier.
Related
This question already has answers here:
DateTime Conversion and Parsing DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss.fff")
(3 answers)
Closed 9 years ago.
I need to convert from a "human readable" date format to DateTime, for example:
From: January 20, 2013
To: MM/dd/yyyy
Does anybody know what's the format or if there's one for doing this with DateTime.Parse and providing the format? I just want to check before jumping into a date parser.
Custom Date and Time Format Strings
MMMM dd, yyyy is a format string you're looking for.
Use DateTime.ParseExact or DateTime.TryParseExact to parse the datetime using specific format string.
After parsing you'll be able to print the value in format you want:
string input = "20, 2013";
DateTime value;
if (DateTime.TryParseExact(input, "dd, yyyy", CultureInfo.CurrentCulture, DateTimeStyles.None, out value))
{
string output = value.ToString("dd/MM/yyyy");
}
I'm not quite sure your goal, but are you trying to format your DateTime based upon which MM/dd/yyyy format that you choose?
If you are you would simply do:
DateTime.Now.ToString(MM/dd/yyy);
DateTime.Now.ToString(MMMM, MM dd, yyyy);
DateTime.Now.ToString(MMMM, MM dd, yyyy hh:mm:ss);
Essentially you have to use these:
Capital MM : Represents the Month, so MMMM (Also creates the Long Date).
Lowercase d : Will represent the day.
Lowercase y: Will represent the year.
Then the hh:mm:ss will actually add an hour, minute, second.
You can also utilize Parse to also ensure it is correctly captured.
Essentially you can easily manage or alter the Format based on whatever you require. MSDN has some great articles on this as well.
Hopefully that helps. Looks like while I was posting a few answers got generated. So your going to get some solid feedback.
I have a string "11 Jan 2011" which I want to convert to the datatype date (i.e 11 Jan 2011).
I have tried all resources about datetime.parse, datetime.parse exact but all these things gives me the same output 2011/01/11 12:00:00 AM. I really don't understand this behaviour. I tried the following:
1.DateTime date = DateTime.Parse("11 Jan 2011");
2.DateTime date = DateTime.ParseExact("11 Jan 2011" , #"dd MMM yyyy", System.Globalization.CultureInfo.InvariantCulture);
parsing and displaying are not the same thing
you parse the original string to a DateTime object but display results using Date/Time format strings
Both your calls are correct.
A DateTime structure preserves no information about formatting; it just represents the raw date and time.
What you need to do is ensure that when you display your date, you do so in the correct format - e.g. by calling string displayString = date.ToString("dd MMM yyyy");
Probably a simple question -
I'm reading in data from a number of files.
My problem is, that when I'm reading in the date from an american file, I parse it like so:
DateSold = DateTime.Parse(t.Date)
This parses the string t.Date into a date format, however it formats the american date to a european date, e.g.
If the date is in the file as 03/01/2011, it is read as the 3rd of January, 2011, when it should be the 1st of March 2011.
Is there a way of doing this so that it formats to the european date?
var dt = DateTime.ParseExact(t.Date, "MM/dd/yyyy", CultureInfo.InvariantCulture);
The DateTime itself has no formatting, it is only when you convert it to or from a string that the format is relevant.
To view your date with American format, you pass the format to the ToString method
string americanFormat = dt.ToString("MM/dd/yyyy");
If you are parsing the date from a file which is specifically a US formatted file then simply pass the US culture information into the parse function as follows;
var usCulture = "en-US";
var dateValue = DateTime.Parse(dateString, new CultureInfo(usCulture, false));
This way you can simply swap out the culture string per different region required for parsing. Also, you no longer have to research the specific datetime format nuances for each culture as .Net will take care of this for you as designed.
Use DateTime.ParseExact or DateTime.TryParseExact when parsing, and specify a format string when you format with ToString too.
Note that there's no such thing as "an American date" after it's been parsed. The DateTime value has no concept of formatting.
It sounds like you're not actually interested in the Parse part so much as the formatting part, e.g.
string formatted = dt.ToString("dd/MM/yyyy", CultureInfo.InvariantCulture);
... but I would recommend that you control both the parsing and formatting explicitly.
If you have different file formats, you'll need to give different format strings when you read each file. How you then format the data is a separate decision.
If you know the format ahead of time, you can use DateTime.ParseExact, using the American format as your format string.
string formatteddate=DateTime.Now.ToString("d") // output: 11/8/2012
string formatteddate=DateTime.Now.ToString("D") // output: Monday, November 08, 2012
string formatteddate=DateTime.Now.ToString("f") // output: Monday, November 08, 2012 3:39 PM
string formatteddate=DateTime.Now.ToString("g") // output: Monday, November 08, 2012 3:39:46 PM
string formatteddate=DateTime.Now.ToString("d") // output: 11/8/2012 3:39 PM
More date-time format in asp.net is given here.
http://dateformat.blogspot.in/2012/09/date-time-format-in-c-aspnet.html
How can I convert a date in a string to a DateTime type, even when the date does not conform to what the .net library supports.
"dec 2 2009"
"dec 2, 2009"
"dec 2009"
"december 2009"
"dec. 2009"
"dec. 2, 2009"
and so on
is there a library for this?
assume us date format
Try:
MyDateTime = DateTime.ParseExact(MyString, "yyyy-MM-dd HH:mm tt", null);
...or whatever the appropriate date format is...
Reference: DateTime.ParseExact
Check out the DateTime.ParseExact at http://msdn.microsoft.com/en-us/library/w2sa9yss.aspx coupled with the custom formats at http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx.
Here's an example:
...
DateTime.TryParseExact(s, "%M %d yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out resultDateTime)
...
if i understand your question
you can try with
ParseExact
E.g : DateTime.ParseExact(sDate, "mm/dd/yyyy", CultureInfo.InvariantCulture);
"even when the date does not conform to what the .net library supports."
"is there a library for this?"
So you want a library, for when the library doesn't support it?
Obviously, people have probably written other date/time string parsers before, but none of them is going to be exhaustive for anything you might ever possibly need - just find something that works with the formats you expect.
I was searching here about converting a string like "16:20" to a DateTime type without losing the format, I said I dont want to add dd/MM/yyy or seconds or AM/PM, because db just accept this format.
I tried with Cultures yet
Thanks in Advance
Just give a date format to your dateTime.
string DateFormat = "yyyy MM d " this willl give you the year month and day. after continuing;
string DateFormat = "yyyy MM d HH:mm:ss " in here the Capital H will give you the 24 hours time format and lowerCase "h" will give you the 12 hours time format...
when you give the Dateformat as a string you can do whatever you want with date and time.
string DateFormat = "yyyyMMdHHmmss";
string date = DateTime.Now.ToStrign(DateFormat);
OR
Console.writeline(DateTime.Now.ToStrign(DateFormat));
OUTPUT:
20120823132544
All DateTime objects must have a date and a time.
If you want just the time, use TimeSpan:
TimeSpan span = TimeSpan.Parse("16:20");
If you want a DateTime, add that time to the min value:
TimeSpan span = TimeSpan.Parse("16.20");
DateTime dt = DateTime.MinValue.Add(span);
// will get you 1/1/1900 4:20 PM which can be formatted with .ToString("HH:mm") for 24 hour formatting
DateTime.Now.ToString("hh:mm") - If it's C#.
Oh. Only read the header.
DateTime dt = new DateTime(2008, 12, 11, Convert.ToInt32("16"), Convert.ToInt32("32"), 0);
what do you mean by "losing the format".
if you convert it to a DateTime type, then the DateTime object will have dd/mm/yy and other properties. depending on how you plan to use the object, you can "recover" your original settings, by formatting the string output like this: DT.ToString("HH:mm");
Since you don't stipulate which DBMS you are using, it is hard to know which answer will help you. If you use IBM Informix Dynamic Server, you would simply use the data type 'DATETIME HOUR TO MINUTE', which will record values in the 24 hour clock.
DateTime.Parse("16:20")
I want to address this part of your question:
without losing the format
A database will generally store all datetime values in a standard common format that's not even human readable. If you use a datetime column the original format is destroyed.
However, when you retrieve the value you cast it back to any format you want. If you want HH:mm you can get it.