Timestamp Selector Task

The timestamp selector task displays an Options tab containing a combo box. The choices in the combobox are:

Specify timestamp - an input field prompting for a timestamp appears
Current date and time
Current date and time previous year
Current date and time next year
Current hour
Next hour
Previous hour
Current minute
Next minute
Previous minute
N minutes ago - an input field prompts for an integer
N minutes from now - an input field prompts for an integer
N hours ago - an input field prompts for an integer
N hours from now - an input field prompts for an integer

When a selection made and values are specified in any dependent controls the following macro variables are created and set as follows:

timestamp - the timestamp specified or a function that calculates the value of the selection, formatted as DDMMMYYYY HH:MM:SS
timestamp_rel - a code that represents the selection made
timestamp_label - the common name of the selection

An example of the code generated by this task when "Current date and time" is selected:

%global timestamp;
%global timestamp_rel;
%global timestamp_label;
%let timestamp = %sysfunc(datetime(), DATETIME20.);
%let timestamp = %sysfunc(catx(%str( ), %substr(×tamp, 1, 9), 
	%substr(×tamp, 11, 8)));
%let timestamp_label = Current date and time;
%let timestamp_rel = T0m;
%put _GLOBAL_;

The macro variable values set by this example code are as follows if it is March 22, 2017 at 11:27:27 AM.

 GLOBAL TIMESTAMP 22MAR2017 11:33:03
 GLOBAL TIMESTAMP_LABEL Current date and time
 GLOBAL TIMESTAMP_REL T0m