DateTime ToString MM dd yyyy HH mm ss fff resulted in something like 09 14 2013 07 20 31 371

Question

I have a WP8 app  which will send the current time to a web service   I get the datetime string by calling   DateTime ToString  MM dd yyyy HH mm ss fff     For most users it works great and gives me the correct string like  09 10 2013 04 04 31 415   But for some user the resulted string is something like  09 14 2013 07 20 31 371   which causes problem in my web service   Is it because some culture format issue  How can I make sure the result string is delimited by colon instead of dot

User · Answer

has special meaning  it is The time separator   Custom Date and Time Format Strings    Use   to escape it   DateTime ToString   MM dd yyyy HH  mm  ss fff     Or use CultureInfo InvariantCulture   DateTime ToString  MM dd yyyy HH mm ss fff   CultureInfo InvariantCulture    I would suggest going with the second one  because   has special meaning as well  it is The date separator    so you can have problems with that too

User · Answer

You can use String Format   DateTime d   DateTime Now  string str   String Format   0 00   1 00   2 0000   3 00   4 00   5 00   6 000    d Month  d Day  d Year  d Hour  d Minute  d Second  d Millisecond      I got this result   02 23 2015 16 42 38 234

User · Answer

You can use InvariantCulture because your user must be in a culture that uses a dot instead of a colon    DateTime ToString  MM dd yyyy HH mm ss fff   CultureInfo InvariantCulture

User · Answer

I bumped into this problem lately with Windows 10 from another direction  and found the answer from  JonSkeet very helpful in solving my problem    I also did som further research with a test form and found that when the the current culture was set to  no  or  nb-NO  at runtime  Thread CurrentThread CurrentCulture   new CultureInfo  no      the ToString  yyyy-MM-dd HH mm ss   call responded differently in Windows 7 and Windows 10  It returned what I expected in Windows 7 and HH mm ss in Windows 10   I think this is a bit scary  Since I believed that a culture was a culture in any Windows version at least

User · Answer

Is it because some culture format issue    Yes  Your user must be in a culture where the time separator is a dot  Both     and     are interpreted in a culture-sensitive way in custom date and time formats      How can I make sure the result string is delimited by colon instead of dot    I d suggest specifying CultureInfo InvariantCulture   string text   dateTime ToString  MM dd yyyy HH mm ss fff                                   CultureInfo InvariantCulture     Alternatively  you could just quote the time and date separators   string text   dateTime ToString  MM   dd   yyyy HH   mm   ss fff          but that will give you  interesting  results that you probably don t expect if you get users running in a culture where the default calendar system isn t the Gregorian calendar  For example  take the following code   using System  using System Globalization  using System Threading   class Test       static void Main                         DateTime now   DateTime Now          CultureInfo culture   new CultureInfo  ar-SA       Saudi Arabia         Thread CurrentThread CurrentCulture   culture          Console WriteLine now ToString  yyyy-MM-ddTHH mm ss fff                That produces output  on September 18th 2013  of   11 12 1434 15 04 31 750   My guess is that your web service would be surprised by that   I d actually suggest not only using the invariant culture  but also changing to an ISO-8601 date format   string text   dateTime ToString  yyyy-MM-ddTHH mm ss fff      This is a more globally-accepted format - it s also sortable  and makes the month and day order obvious   Whereas 06 07 2013 could be interpreted as June 7th or July 6th depending on the reader s culture

User · Answer

Convert Date To String  Use name Space  using System Globalization    Code  string date   DateTime ParseExact datetext Text   dd-MM-yyyy   CultureInfo InstalledUICulture  ToString  yyyy-MM-dd

[c#] DateTime.ToString("MM/dd/yyyy HH:mm:ss.fff") resulted in something like "09/14/2013 07.20.31.371"

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