Format Dates and Times
You can use DataWeave to change the format of date and time input. Before you begin, note that 2.x versions of DataWeave are used by Mule 4 apps. For DataWeave in Mule 3 apps, refer to DataWeave version 1.2 examples. For other DataWeave versions, you can use the version selector in the DataWeave table of contents.
Change Date and Time Formats
You can combine formatting characters, such as MM and dd, to write supported date and time formats. The example uses the as operator to write the dates and times as a string.
Transform
%dw 2.0
output application/json
---
{
formattedDate: |2020-10-01T23:57:59| as String {format: "uuuu-MM-dd"},
formattedTime: |2020-10-01T23:57:59| as String {format: "KK:mm:ss a"},
formattedDateTime: |2020-10-01T23:57:59| as String {format: "KK:mm:ss a, MMMM dd, uuuu"}
}Output
{
"formattedDate": "2020-10-01",
"formattedTime": "11:57:59 PM",
"formattedDateTime": "11:57:59 PM, October 01, 2020"
}Create a Custom Date Format as a DataWeave Type
For multiple, similar conversions in your script, you can define a custom type as a directive in the header and set each date to that type. Names of DataWeave type are case-sensitive.
DataWeave Script
%dw 2.0
output application/json
type Mydate = String { format: "uuuu/MM/dd" }
---
{
formattedDate1: |2019-10-01T23:57:59| as Mydate,
formattedDate2: |2020-07-06T08:53:15| as Mydate
}Output
{
"formattedDate1": "2019/10/01",
"formattedDate2": "2020/07/06"
}Use Date and Time Formatting Characters
DataWeave supports the use of formatting characters, such as the u (for the year), M, and d in the date format uuuu-MM-dd. These characters are based on the Java 8 java.time.format package.
The following example formats the output of the now DataWeave function to show
supported letters:
DataWeave Script
%dw 2.0
var myDateTime = ("2020-11-10T13:44:12.283-08:00" as DateTime)
output application/json
---
{
"dateTime" : myDateTime,
"era-G" : myDateTime as String { format: "G"},
"year-u" : myDateTime as String {format: "u"},
"year-uu" : myDateTime as String {format: "uu"},
//y is for use with the era (BCE or CE). Generally, use u, instead.
"year-y" : myDateTime as String { format: "y"},
"year-yy" : myDateTime as String { format: "yy"},
"dayOfYear-D" : myDateTime as String { format: "D"},
"monthOfYear-MMMM": myDateTime as String { format: "MMMM"},
"monthOfYear-MMM": myDateTime as String { format: "MMM"},
"monthOfYear-MM": myDateTime as String { format: "MM"},
"monthOfYear-M": myDateTime as String { format: "M"},
"monthOfYear-LL": myDateTime as String { format: "LL"},
"monthOfYear-L": myDateTime as String { format: "L"},
"dayOfMonth-d" : myDateTime as String {format: "d"},
"quarterOfYear-qqq" : myDateTime as String {format: "qqq"},
"quarterOfYear-qq" : myDateTime as String {format: "qq"},
"quarterOfYear-q" : myDateTime as String {format: "q"},
"quarterOfYear-QQQQ" : myDateTime as String {format: "QQQQ"},
"quarterOfYear-QQQ" : myDateTime as String {format: "QQQ"},
"quarterOfYear-QQ" : myDateTime as String {format: "QQ"},
"quarterOfYear-Q" : myDateTime as String {format: "Q"},
// Understand "Y" and "YY" thoroughly before using it.
"weekBasedYear-YY" : myDateTime as String { format: "YY"},
"weekBasedYear-Y" : myDateTime as String { format: "Y"},
"weekInYear-w" : myDateTime as String {format: "w"},
"weekInMonth-W" : myDateTime as String {format: "W"},
"dayOfWeekAbbreviatedName-E" : myDateTime as String {format: "E"},
"dayOfWeekFullName-EEEE" : myDateTime as String {format: "EEEE"},
"localizedDayOfWeek-eeee" : myDateTime as String {format: "eeee"},
"localizedDayOfWeek-eee" : myDateTime as String {format: "eee"},
"localizedDayOfWeek-ee" : myDateTime as String {format: "ee"},
"localizedDayOfWeek-e" : myDateTime as String {format: "e"},
"localizedDayOfWeek-cccc" : myDateTime as String {format: "cccc"},
"localizedDayOfWeek-ccc" : myDateTime as String {format: "ccc"},
"localizedDayOfWeek-c" : myDateTime as String {format: "c"},
"weekOfMonth-F" : myDateTime as String {format: "F"},
"amORpm-a" : myDateTime as String {format: "a"},
// "h" outputs 12 o'clock as 12. Other hours match "K" output.
"hourOfDay1to12-h" : myDateTime as String {format: "h"},
// "K" outputs 12 o'clock as 0. Other hours match "h" output.
"hourOfDay0to11-K" : myDateTime as String {format: "K"},
"clockHourOfAmPm-k" : myDateTime as String {format: "k"},
"hourOfDay0to23-H" : myDateTime as String {format: "H"},
"minuteOfHour-m" : myDateTime as String {format: "m"},
"secondOfMinute-s" : myDateTime as String {format: "s"},
"fractionOfSecond-S" : myDateTime as String {format: "S"},
"millisecondOfDay-A" : myDateTime as String {format: "A"},
"nanosecondCountOfSecond-n" : myDateTime as String {format: "n"},
"nanosecondCountOfDay-N" : myDateTime as String {format: "N"},
"timeZoneID-VV" : myDateTime as String {format: "VV"},
"timeZoneName-zz" : myDateTime as String {format: "zz"},
"localizedZoneOffset-zzz" : myDateTime as String {format: "zzz"},
"localizedZoneOffset-O" : myDateTime as String {format: "O"},
"timeZoneOffsetZforZero-XXX" : myDateTime as String {format: "XXX"},
"timeZoneOffsetZforZero-XX" : myDateTime as String {format: "XX"},
"timeZoneOffsetZforZero-X" : myDateTime as String {format: "X"},
"timeZoneOffset-xxx" : myDateTime as String {format: "xxx"},
"timeZoneOffset-xx" : myDateTime as String {format: "xx"},
"timeZoneOffset-x" : myDateTime as String {format: "x"},
"timeZoneOffset-Z" : myDateTime as String {format: "Z"}
}Notice the use of the syntax to format the date or time.
Output
{
"dateTime": "2020-11-10T13:44:12.283-08:00",
"era-G": "AD",
"year-u": "2020",
"year-uu": "20",
"year-y": "2020",
"year-yy": "20",
"dayOfYear-D": "315",
"monthOfYear-MMMM": "November",
"monthOfYear-MMM": "Nov",
"monthOfYear-MM": "11",
"monthOfYear-M": "11",
"monthOfYear-LL": "11",
"monthOfYear-L": "11",
"dayOfMonth-d": "10",
"quarterOfYear-qqq": "4",
"quarterOfYear-qq": "04",
"quarterOfYear-q": "4",
"quarterOfYear-QQQQ": "4th quarter",
"quarterOfYear-QQQ": "Q4",
"quarterOfYear-QQ": "04",
"quarterOfYear-Q": "4",
"weekBasedYear-YY": "20",
"weekBasedYear-Y": "2020",
"weekInYear-w": "46",
"weekInMonth-W": "2",
"dayOfWeekAbbreviatedName-E": "Tue",
"dayOfWeekFullName-EEEE": "Tuesday",
"localizedDayOfWeek-eeee": "Tuesday",
"localizedDayOfWeek-eee": "Tue",
"localizedDayOfWeek-ee": "03",
"localizedDayOfWeek-e": "3",
"localizedDayOfWeek-cccc": "Tuesday",
"localizedDayOfWeek-ccc": "Tue",
"localizedDayOfWeek-c": "3",
"weekOfMonth-F": "3",
"amORpm-a": "PM",
"hourOfDay1to12-h": "1",
"hourOfDay0to11-K": "1",
"clockHourOfAmPm-k": "13",
"hourOfDay0to23-H": "13",
"minuteOfHour-m": "44",
"secondOfMinute-s": "12",
"fractionOfSecond-S": "2",
"millisecondOfDay-A": "49452283",
"nanosecondCountOfSecond-n": "283000000",
"nanosecondCountOfDay-N": "49452283000000",
"timeZoneID-VV": "-08:00",
"timeZoneName-zz": "-08:00",
"localizedZoneOffset-zzz": "-08:00",
"localizedZoneOffset-O": "GMT-8",
"timeZoneOffsetZforZero-XXX": "-08:00",
"timeZoneOffsetZforZero-XX": "-0800",
"timeZoneOffsetZforZero-X": "-08",
"timeZoneOffset-xxx": "-08:00",
"timeZoneOffset-xx": "-0800",
"timeZoneOffset-x": "-08",
"timeZoneOffset-Z": "-0800"
}