The appropriate localized designator is retrieved from the DateTimeFormatInfo.AMDesignator or DateTimeFormatInfo.PMDesignator property of the current or specific culture. All other characters are always interpreted as character literals and, in a formatting operation, are included in the result string unchanged. The "O" or "o" standard format specifier corresponds to the "yyyy'-'MM'-'dd'T'HH':'mm':'ss'. H ow do I format the date to display on the screen on for my shell scripts as per my requirements on Linux or Unix like operating systems? The result string is affected by the formatting information of a specific DateTimeFormatInfo object. The following example includes the "F" custom format specifier in a custom format string. Static methods Intl.DateTimeFormat.supportedLocalesOf() Returns an array containing those of the provided locales that are supported without having to fall back to the runtime's default locale. M – Middle-endian (month, day, year), e.g. Any date and time format string that contains more than one character, including white space, is interpreted as a custom date and time format string.A standard or custom format string can be used in two ways: Although the result string should express a time as Coordinated Universal Time (UTC), no conversion of the original DateTime value is performed during the formatting operation. The offset is always displayed with a leading sign. Your application can change the result produced by some standard date and time format specifiers by changing the corresponding date and time format patterns of the corresponding DateTimeFormatInfo property. The offset is always displayed with a leading sign. The escape character signifies that the following character is a character literal that should be included in the result string unchanged. The following example uses the "s" format specifier to display a DateTime and a DateTimeOffset value on a system in the U.S. Pacific Time zone. The following example includes the "mm" custom format specifier in a custom format string. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. The "ss" custom format specifier (plus any number of additional "s" specifiers) represents the seconds as a number from 00 through 59. To change the date separator for all dates for a culture, either change the value of the DateTimeFormatInfo.DateSeparator property of the current culture, or instantiate a DateTimeFormatInfo object, assign the character to its DateSeparator property, and call an overload of the formatting method that includes an IFormatProvider parameter. The result string is affected by the formatting information of a specific DateTimeFormatInfo object. If the "d" format specifier is used without other custom format specifiers, it's interpreted as the "d" standard date and time format specifier. Make sure to use the "tt" specifier for languages for which it's necessary to maintain the distinction between AM and PM. The "fffff" custom format specifier represents the five most significant digits of the seconds fraction; that is, it represents the hundred thousandths of a second in a date and time value. The "ddd" custom format specifier represents the abbreviated name of the day of the week. The "H" custom format specifier represents the hour as a number from 0 through 23; that is, the hour is represented by a zero-based 24-hour clock that counts the hours since midnight. This may affect the behavior and the output of examples that illustrate the DateTime, DateTimeOffset, and TimeZoneInfo types and their members. More. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. The following sections describe the standard format specifiers for DateTime and DateTimeOffset values. The following example includes the "MMMM" custom format specifier in a custom format string. A simple API to format dates. For the Thai Buddhist calendar, which can have five-digit years, this format specifier displays all significant digits. 2009-06-15T13:45:30 ("arr:" h:m t) -> arr: 1:45 P. Defines the following character as a custom format specifier. The following example is like the previous one, except that "pst" is enclosed in quotation marks to indicate that the entire delimited string should be interpreted as character literals. So you need to change the date format. The "d" custom format specifier represents the day of the month as a number from 1 through 31. Example: Mon, 07 Aug 2006 12:34:56 -0600--rfc-3339=TIMESPEC: Output date and time in RFC 3339 format. A custom date and time format string consists of two or more characters. Convert date to different format with Apply Date Formatting. The localized name of the month is retrieved from the DateTimeFormatInfo.MonthNames property of the current or specified culture. However, the DateTime value is automatically converted to UTC before it is formatted. For example, the custom format string for the invariant culture is "MMMM dd". If non-zero, the millionths of a second in a date and time value. Basic components of a calendar date for the most common calendar systems: 1. The following table describes the custom date and time format specifiers and displays a result string produced by each format specifier. The hour, using a 24-hour clock from 00 to 23. The "fffffff" custom format specifier represents the seven most significant digits of the seconds fraction; that is, it represents the ten millionths of a second in a date and time value. If the "g" format specifier is used without other custom format specifiers, it's interpreted as the "g" standard date and time format specifier. BSD . Computers that use different settings generate different result strings. Hours offset from UTC, with a leading zero for a single-digit value. The full date short time ("f") format specifier, The full date long time ("F") format specifier, The general date short time ("g") format specifier, The general date long time ("G") format specifier, The round-trip ("O", "o") format specifier, The universal sortable ("u") format specifier, The universal full ("U") format specifier, DateTimeFormatInfo.GetAllDateTimePatterns(Char), DateTime.Parse(String, IFormatProvider, DateTimeStyles), DateTimeFormatInfo.SortableDateTimePattern, DateTimeFormatInfo.UniversalSortableDateTimePattern, The year month ("Y", "y") format specifier, Sample: .NET Core WinForms Formatting Utility (C#), Sample: .NET Core WinForms Formatting Utility (Visual Basic), 2009-06-15T13:45:30 -> Monday, June 15, 2009 (en-US), 2009-06-15T13:45:30 -> Monday, June 15, 2009 1:45 PM (en-US), 2009-06-15T13:45:30 -> Monday, June 15, 2009 1:45:30 PM (en-US), 2009-06-15T13:45:30 -> 6/15/2009 1:45 PM (en-US), 2009-06-15T13:45:30 -> 6/15/2009 1:45:30 PM (en-US), 2009-06-15T13:45:30 -> Mon, 15 Jun 2009 20:45:30 GMT, 2009-06-15T13:45:30 (DateTimeKind.Local) -> 2009-06-15T13:45:30, 2009-06-15T13:45:30 -> 1:45:30 PM (en-US), 2009-06-15T13:45:30 -> Monday, June 15, 2009 8:45:30 PM (en-US), yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'fffffffzz. With DateTime values, the "zz" custom format specifier represents the signed offset of the local operating system's time zone from UTC, measured in hours. In this article. In other words, it defaults to the value of time(). If you have Kutools for Excel, its Apply Date Formatting function will do you a big favor. If you change your date setting in Control Panel, the default date format in Excel will change accordingly. The ten millionths of a second in a date and time value. In the Format Cells dialog box, click Number > Date, and choose the local date as you need.See screenshot: The "yy" custom format specifier represents the year as a two-digit number. The following table lists the DateTimeFormatInfo object properties that may control the formatting of the returned string. A simple API to format dates. The modified code either runs in the interactive window or, if compilation fails, the interactive window displays all C# compiler error messages. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. The following table lists the DateTimeFormatInfo object properties that may control the formatting of the returned string. For example, the "ddd" format specifier adds an abbreviated weekday name found in the AbbreviatedDayNames string array to the result string. The "MMM" custom format specifier represents the abbreviated name of the month. Unless otherwise noted, each specifier produces an identical string representation regardless of whether it's used with a DateTime value or a DateTimeOffset value. For example, the custom format string for the invariant culture is "HH:mm:ss". Function syntax Therefore, it is always the same, regardless of the culture used or the format provider supplied. Dates are stored as numbers in Excel and count the number of days since January 0, 1900. In this string, the pairs of single quotation marks that delimit individual characters, such as the hyphens, the colons, and the letter "T", indicate that the individual character is a literal that cannot be changed. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. With DateTimeOffset values, this format specifier represents the DateTimeOffset value's offset from UTC in hours. Select the dates whose format your want to change, or empty cells where you want to insert dates. Times … These methods require that an input string conforms exactly to a particular pattern for the parse operation to succeed. The localized abbreviated name of the month is retrieved from the DateTimeFormatInfo.AbbreviatedMonthNames property of the current or specified culture. As a result, although the "s" standard format specifier represents a date and time value in a consistent format, the formatting operation does not modify the value of the date and time object that is being formatted to reflect its DateTime.Kind property or its DateTimeOffset.Offset value. The precision of date and time values depends on the resolution of the system clock. In formatting operations, custom date and time format strings can be used either with the ToString method of a date and time instance or with a method that supports composite formatting. The following example parses the string representation of a date that has a two-digit year by using the default Gregorian calendar of the en-US culture, which, in this case, is the current culture. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. Source code is available for C# and Visual Basic. The custom format string is "yyyy'-'MM'-'dd'T'HH':'mm':'ss". The "Y" or "y" standard format specifier represents a custom date and time format string that is defined by the DateTimeFormatInfo.YearMonthPattern property of a specified culture. Four standard format strings fall into this category: "O" (or "o"), "R" (or "r"), "s", and "u". The precision of date and time values depends on the resolution of the system clock. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. The number of "F" format specifiers used with the ParseExact, TryParseExact, ParseExact, or TryParseExact method indicates the maximum number of most significant digits of the seconds fraction that can be present to successfully parse the string. The "yyy" custom format specifier represents the year with a minimum of three digits. Date and Time in C# are handled by DateTime class in C# that provides properties and methods to format dates in different datetime formats. The following example includes the "f" custom format specifier in a custom format string. If a particular format specifier produces a localized result string, the example also notes the culture to which the result string applies. "); The following example uses the "g" format specifier to display a date and time value. If the year has fewer than four digits, the number is padded with leading zeros to produce four digits. For DateTime values, this format specifier is designed to preserve date and time values along with the DateTime.Kind property in text. Although the RFC 1123 standard expresses a time as Coordinated Universal Time (UTC), the formatting operation does not modify the value of the DateTime object that is being formatted. To use any of the custom date and time format specifiers as the only specifier in a format string (that is, to use the "d", "f", "F", "g", "h", "H", "K", "m", "M", "s", "t", "y", "z", ":", or "/" custom format specifier by itself), include a space before or after the specifier, or include a percent ("%") format specifier before the single custom date and time specifier. For example, the custom format string that is returned by the ShortDatePattern property of the invariant culture is "MM/dd/yyyy". The following example includes the "dddd" custom format specifier in a custom format string. The hour, using a 12-hour clock from 01 to 12. If the "m" format specifier is used without other custom format specifiers, it's interpreted as the "m" standard date and time format specifier. A single-digit offset is formatted without a leading zero. Excel uses date serial numbers to store date and time information. The hour, using a 12-hour clock from 1 to 12. For more information, see. 3.Select the cell B1 and right-click, choose Format Cells from the context menu. License. In a parsing operation, they must match the characters in the input string exactly; the comparison is case-sensitive. The "ffff" custom format specifier represents the four most significant digits of the seconds fraction; that is, it represents the ten thousandths of a second in a date and time value. Defines the format of the date component of the result string. You can use the CultureInfo(String, Boolean) constructor to create a CultureInfo object that does not reflect a system's customizations. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. Any date and time format string that contains more than one character, including white space, is interpreted as a custom date and time format string. following example includes the "ff" custom format specifier in a custom format string. See Control Panel Settings and DateTimeFormatInfo Properties for additional information about using standard date and time format strings. For example, given a time of 5:43 in the morning or afternoon, this format specifier displays "05". It can also define the representation of a date and time value that is required in a parsing operation in order to successfully convert the string to a date and time. “F” If non-zero, the tenths of a second in a date and time value. The following example includes the "g" custom format specifier in a custom format string. The following example includes the "h" custom format specifier in a custom format string. With DateTime values, the "zzz" custom format specifier represents the signed offset of the local operating system's time zone from UTC, measured in hours and minutes. The "dddd" custom format specifier (plus any number of additional "d" specifiers) represents the full name of the day of the week. When this format specifier is used with DateTime values, the result string is defined by the value of the DateTime.Kind property: For the local time zone (a DateTime.Kind property value of DateTimeKind.Local), this specifier is equivalent to the "zzz" specifier and produces a result string containing the local offset from Coordinated Universal Time (UTC); for example, "-07:00". On the Windows NT 3.5 (and later) and Windows Vista operating systems, the clock's resolution is approximately 10-15 milliseconds. The hour, using a 24-hour clock from 0 to 23. DateTimeKind.Unspecified date and time values have no time zone information. If the "s" format specifier is used without other custom format specifiers, it's interpreted as the "s" standard date and time format specifier. A date and time format string defines the text representation of a DateTime or DateTimeOffset value that results from a formatting operation. For example, a format string that consists only of the specifier "h" is interpreted as a standard date and time format string. In a parsing operation, a two-digit year that is parsed using the "yy" custom format specifier is interpreted based on the Calendar.TwoDigitYearMax property of the format provider's current calendar. The "D" standard format specifier represents a custom date and time format string that is defined by the current DateTimeFormatInfo.LongDatePattern property. The precision of date and time values depends on the resolution of the system clock. The formatted string can be parsed back by using the DateTime.Parse(String, IFormatProvider, DateTimeStyles) or DateTime.ParseExact method if the styles parameter is set to DateTimeStyles.RoundtripKind. The "M" custom format specifier represents the month as a number from 1 through 12 (or from 1 through 13 for calendars that have 13 months). Dmitry Jemerov Created September 15, 2008 11:34. The following example includes the "yyy" custom format specifier in a custom format string. The format you must use for proper date formatting every time is: Four-digit year ; Dash ; Two digit month or single digit month with leading zero ; Dash The "MM" custom format specifier represents the month as a number from 01 through 12 (or from 1 through 13 for calendars that have 13 months). Defines the overall format of the result string. Although it's possible to display the ten thousandths of a second component of a time value, that value may not be meaningful. The "T" standard format specifier represents a custom date and time format string that is defined by a specific culture's DateTimeFormatInfo.LongTimePattern property. For a time from an unspecified time zone (a time whose DateTime.Kind property equals DateTimeKind.Unspecified), the result is equivalent to String.Empty. If an American writes May 3, 1988 as 05/03/1988 but an Italian writes May 3, 1988 as 03/05/1988 who's to know what's what! If the first digit of a two-digit year begins with a zero (for example, 2008), the number is formatted without a leading zero. The "dd" custom format string represents the day of the month as a number from 01 through 31. A particular hour after midnight is indistinguishable from the same hour after noon. For example, the custom format string for the invariant culture is "HH:mm". For example, in a formal letter, you wouldn’t use contractions (you should write cannot instead of can’t, or would not instead of wouldn’t). For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. C# DateTime Format. Nothing is displayed if the digit is zero. date format configurable, so I can use my preferred format yyyy-MM-dd - BTW, what country has this as default? The "U" format specifier is not supported by the DateTimeOffset type and throws a FormatException if it is used to format a DateTimeOffset value. The following sections provide additional information about each custom date and time format specifier. The localized name of the day of the week is retrieved from the DateTimeFormatInfo.DayNames property of the current or specified culture. Y – Year 2. The "F" standard format specifier represents a custom date and time format string that is defined by the current DateTimeFormatInfo.FullDateTimePattern property. Once you execute the code, you can modify it and run the modified code by selecting Run again. The hundredths of a second in a date and time value. For example, the custom format string hh'_'dd'_'ss produces a result string in which "_" (an underscore) is always used as the time separator. The following example uses the "G" format specifier to display a date and time value. The following example uses the "o" format specifier to display a series of DateTime values and a DateTimeOffset value on a system in the U.S. Pacific Time zone. 'fffffffK" custom format string for DateTime values and to the "yyyy'-'MM'-'dd'T'HH':'mm':'ss'. The following example includes the "FF" custom format specifier in a custom format string. Output date and time in RFC 2822 format. To include a backslash in a result string, you must escape it with another backslash (\\). Unless otherwise noted, a particular standard date and time format specifier produces an identical string representation regardless of whether it is used with a DateTime or a DateTimeOffset value. It doesn't reflect the value of an instance's DateTime.Kind property. When it comes to changing date format of a given cell or range of cells, the easiest way is to open the Format Cells dialog and choose one of the predefined formats.. The local time zone of the Try.NET inline code runner and playground is Coordinated Universal Time, or UTC. The following example includes the "yyyyy" custom format specifier in a custom format string. You need to use the standard date command to format date or time in Linux or Unix shell scripts. With DateTimeOffset values, this format specifier represents the DateTimeOffset value's offset from UTC in hours and minutes. You can also create your own custom format in Excel desktop. If the "h" format specifier is used without other custom format specifiers, it's interpreted as a standard date and time format specifier and throws a FormatException. You can download the Formatting Utility, a .NET Core Windows Forms application that lets you apply format strings to either numeric or date and time values and displays the result string. For more information about using custom date and time format strings, see the Notes section. This may affect the behavior and the output of examples that illustrate the DateTime, DateTimeOffset, and TimeZoneInfo types and their members. The following example includes the "yyyy" custom format specifier in a custom format string. A single-digit offset is formatted with a leading zero. Although it's possible to display the hundred thousandths of a second component of a time value, that value may not be meaningful. The following example includes the "M" custom format specifier in a custom format string. By enclosing the entire literal string in quotation marks or apostrophes. The "d", "f", "F", "g", "h", "H", "K", "m", "M", "s", "t", "y", "z", ":", or "/" characters in a format string are interpreted as custom format specifiers rather than as literal characters. Formatting is influenced by properties of the current DateTimeFormatInfo object, which is provided implicitly by the current thread culture or explicitly by the IFormatProvider parameter of the method that invokes formatting. ISO 8601 Data elements and interchange formats – Information interchange – Representation of dates and times is an international standard covering the exchange of date- and time-related data.It was issued by the International Organization for Standardization (ISO) and was first published in 1988. The following example displays a date using the short date format from a DateTimeFormatInfo object for the hr-HR culture. If non-zero, the hundredths of a second in a date and time value. The following example includes the "s" custom format specifier in a custom format string. The following example includes the "y" custom format specifier in a custom format string. Defines the localized day names that can appear in the result string. The result string is affected by the formatting information of a specific DateTimeFormatInfo object. “FF” If non-zero, the hundredths of a second in a date and time value. The following example uses the "U" format specifier to display a date and time value. Category. For example, the result strings produced by formatting the date and time values 2014-11-15T18:32:17+00:00 and 2014-11-15T18:32:17+08:00 are identical. The "g" or "gg" custom format specifiers (plus any number of additional "g" specifiers) represents the period or era, such as A.D. The "g" standard format specifier represents a combination of the short date ("d") and short time ("t") patterns, separated by a space. The "t" standard format specifier represents a custom date and time format string that is defined by the current DateTimeFormatInfo.ShortTimePattern property. These settings are used to initialize the DateTimeFormatInfo object associated with the current thread culture, which provides values used to govern formatting. If the "t" format specifier is used without other custom format specifiers, it's interpreted as the "t" standard date and time format specifier. The localized abbreviated name of the day of the week is retrieved from the DateTimeFormatInfo.AbbreviatedDayNames property of the current or specified culture. If no mask is specified, returns the value in dd-mmm-yy format. The "h" custom format specifier represents the hour as a number from 1 through 12; that is, the hour is represented by a 12-hour clock that counts the whole hours since midnight or noon. The "FFFFFF" custom format specifier represents the six most significant digits of the seconds fraction; that is, it represents the millionths of a second in a date and time value. Strings that are passed to the Parse, TryParse, ParseExact, and TryParseExact methods of DateTime and DateTimeOffset can be parsed by using the "O" or "o" format specifier if they are in one of these formats. However, in this particular case, an exception is thrown because there is no "h" standard date and timeformat specifier. By default, Windows formats dates with slashes (3/23/16). If the "F" format specifier is used without other format specifiers, it's interpreted as the "F" standard date and time format specifier. The "tt" custom format specifier (plus any number of additional "t" specifiers) represents the entire AM/PM designator. A single-digit day is formatted with a leading zero. The following example uses the "F" format specifier to display a date and time value. The following table lists the DateTimeFormatInfo object properties that control the formatting of the returned string. I know if users click their photo> go to settings> language> choose the area, time and data format will change ( we prefer the UK style- DD/MM), but I am looking for a solution which admins can do for everyone. The following example includes the "ss" custom format specifier in a custom format string. For the invariant culture, this pattern is "MM/dd/yyyy". It doesn't reflect the value of an instance's DateTime.Kind property. The hundred thousandths of a second in a date and time value. On the Windows NT 3.5 (and later) and Windows Vista operating systems, the clock's resolution is approximately 10-15 milliseconds. To change the time separator for a particular date and time string, specify the separator character within a literal string delimiter. In contrast, DateTimeOffset values perform this conversion automatically; there is no need to call the DateTimeOffset.ToUniversalTime method before the formatting operation. When you use "f" format specifiers as part of a format string supplied to the ParseExact, TryParseExact, ParseExact, or TryParseExact method, the number of "f" format specifiers indicates the number of most significant digits of the seconds fraction that must be present to successfully parse the string. The following example includes the "FFF" custom format specifier in a custom format string. The custom format specifier that is returned by the DateTimeFormatInfo.ShortDatePattern and DateTimeFormatInfo.LongTimePattern properties of some cultures may not make use of all properties. The "FF" custom format specifier represents the two most significant digits of the seconds fraction; that is, it represents the hundredths of a second in a date and time value. The following example displays the string that results from using the "K" custom format specifier with various DateTime and DateTimeOffset values on a system in the U.S. Pacific Time zone. This does not make sense = [02 RK1Y]-74261-[477-4DKU]. For example, given a time of 5:43 in the morning or afternoon, this custom format specifier displays "5". The following example uses the "d" format specifier to display a date and time value. The pattern is the same as the "F" pattern. You can use the same command with the shell script. For more information about using a single format specifier, see Using Single Custom Format Specifiers later in this article. A single-digit minute is formatted without a leading zero. On the Windows NT 3.5 (and later) and Windows Vista operating systems, the clock's resolution is approximately 10-15 milliseconds. If the "H" format specifier is used without other custom format specifiers, it's interpreted as a standard date and time format specifier and throws a FormatException. Some of the C# examples in this article run in the Try.NET inline code runner and playground. The AM designator is used for all times from 0:00:00 (midnight) to 11:59:59.999. As such, the ISO 8601 is: 1. If the year has fewer than three digits, the number is padded with leading zeros to produce three digits. 0. The following example includes the "zzz" custom format specifier in a custom format string. For example, the custom format string for the invariant culture is "dddd, dd MMMM yyyy".