How do you manipulate dates in SAS?
To change a numeric variable to a SAS date value, use both the PUT and INPUT functions. The PUT function converts the value from numeric to character. The INPUT function will then convert the character variable to the numeric SAS date.
How do I code a date range in SAS?
To write a SAS date constant (in IF or WHERE statements for example), enclose a date in quotation marks in the standard SAS form ddMMMyyyy and immediately follow the final quotation mark with the letter D. The D suffix tells SAS to convert the calendar date to a SAS date value.
What is the data type of date in SAS?
A SAS date, time or datetime variable is a special case of a numeric variable. The values of a date variable represent the number of days before or after January 1, 1960, and the values of a time variable is the number of seconds since midnight. A time variable is independent of date.
What are the date functions in SAS?
Date, Time, and Datetime Functions
| Function | Description |
|---|---|
| DATE or TODAY | Returns the current date as a SAS date value |
| DATEJUL | Converts a Julian date to a SAS date value |
| DHMS | Returns a SAS datetime value from date, hour, minute, and second values |
| HMS | Returns a SAS time value from hour, minute, and second values |
How does SAS store dates?
The SAS system stores dates as the number of elapsed days since January 1,1960. For example, January 1, 1960 is stored as 0. December 30, 1959’s SAS date equals -2, and December 31, 1960 SAS date is stored as 365. Times are stored as the number of elapsed seconds since midnight.
How do I get todays date in SAS?
But, how do you get today’s date in SAS? In SAS, both the TODAY() function and the DATE() function give you the current date. These functions will return the number of days between the 1st of January 1960 and today.
How do you add a date in SAS?
- Syntax INTNX in SAS :
- INTNX – add days to date.
- INTNX – add weeks to date.
- INTNX – add month to date.
- INTNX – add year to date.
- INTNX – Populate First date of a Month.
- INTNX – Populate Last date of a Month.
- INTNX – Populate First date of a year.
How is date stored in SAS?
SAS dates are stored as simple integer numbers. SAS time/datetimes are stored as decimal numbers to include 10th and 100th of seconds. For time values the integer part is the number of seconds from midnight. For datetime the integer part equals the number of seconds from January 1,1960.
How do you set a variable date in SAS?
No matter how a SAS date variable is displayed, SAS date literals in code are always written in the format “ddmmmyyyy”d, where mmm is the abbreviated name of the month. If you want the SAS date variable to display as mm/dd/yyyy, assign it the MMDDYY10.
What is the first date in SAS?
The origin of the algorithm used for SAS date processing comes from a Computerworld article dated January 14, 1980 by Dr. Bhairav Joshi of SUNY- Geneseo. The earliest date that SAS can handle with this algorithm is January 1, 1582. The latest date is far enough into the future that four digits can’t display the year.
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