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In the "Duration Unit" column, the time components are represented using the following codes:

SPSS duration formats as applied to an example duration of 29 hours, 14 minutes, 36.58 seconds. The actual duration formats that you will use in your SPSS syntax are as follows. You'll see an example of how date-time formats are used in the example of converting a string variable to a date variable. You will replace these with the appropriate number to use for the width of the date. The letter w denotes the number of "columns" (typically the number of characters in the input string), and the letter d represents the number of decimal places, if present. In the "general form" column, the name of the format appears first, followed by the letter w (or w.d). "ww" = week of year as two-digit number (1, 2.“q” = quarter of year as one-digit number (1, 2, 3, 4)."yy" = two-digit year (century is omitted)."mmm" = month as three-character abbreviation (JAN, FEB."mm" = month as two-digit number (01, 02."ddd" = day of year as three-digit number (1, 2.“dd” = day of month as two-digit number (01, 02.In the "Date-Time Unit" column, the date components are represented using the following codes: SPSS date formats as applied to an example date/time of Thursday, January 31, 2013, 1:02:33.72 (AM). The actual date formats that you will use in your SPSS syntax are as follows. month-day-year versus year-month-day), and the presence or absence of delimiters.

Your choice of format will depend on the whether or not the input is a date or a duration, as well as the time units included in the data value, the order of the units (e.g.

Changing the display format for an existing date variable (without changing the underlying data).

Converting a variable from string or numeric to date.

Initializing a new date or duration variable.

There are different formats for different variable types, and each format in SPSS has a unique name.ĭate-time formats are used in several situations: A format is a named, pre-defined pattern that tells SPSS how to interpret and/or display different types of variables. When reading data containing dates or using certain date-time functions, we need to tell SPSS which date format to use, so that it knows how to correctly parse the components of the input string.