How-To Date/Time Object in Illustrator/Photoshop

I've made a script with chat GPT. It updates all text frames in Illustrator document that match any of the specified date formats to the current date, keeping the format the same as the input. It now handles the formats "DD.MM.YYYY", "YYYY.MM.DD", "YYYY-MM-DD", "DD-MM-YYYY", "DD/MM/YYYY", "YYYY/MM/DD", and "MM/DD/YYYY".  You can copy it to notepad, save as txt, then rename to jsx file extension and run in AI.

// Function to get the current date as a string in the specified format
function getCurrentDateString(format) {
var currentDate = new Date();
var day = ("0" + currentDate.getDate()).slice(-2);
var month = ("0" + (currentDate.getMonth() + 1)).slice(-2);
var year = currentDate.getFullYear();
switch (format) {
case "DD.MM.YYYY":
return day + "." + month + "." + year;
case "YYYY.MM.DD":
return year + "." + month + "." + day;
case "YYYY-MM-DD":
return year + "-" + month + "-" + day;
case "DD-MM-YYYY":
return day + "-" + month + "-" + year;
case "DD/MM/YYYY":
return day + "/" + month + "/" + year;
case "YYYY/MM/DD":
return year + "/" + month + "/" + day;
default:
return day + "." + month + "." + year; // Default to "DD.MM.YYYY"
}
}

// Function to update all text frames containing dates to the current date
function updateDateTextFrames(doc) {
var textFrames = doc.textFrames;
// Regular expressions to match different date formats
var datePatterns = [
{ pattern: /^\d{2}\.\d{2}\.\d{4}$/, format: "DD.MM.YYYY" }, // Match date format like "18.10.2024"
{ pattern: /^\d{4}\.\d{2}\.\d{2}$/, format: "YYYY.MM.DD" }, // Match date format like "2024.10.18"
{ pattern: /^\d{4}-\d{2}-\d{2}$/, format: "YYYY-MM-DD" }, // Match date format like "2024-10-18"
{ pattern: /^\d{2}-\d{2}-\d{4}$/, format: "DD-MM-YYYY" }, // Match date format like "18-10-2024"
{ pattern: /^\d{2}\/\d{2}\/\d{4}$/, format: "DD/MM/YYYY" }, // Match date format like "18/10/2024"
{ pattern: /^\d{4}\/\d{2}\/\d{2}$/, format: "YYYY/MM/DD" } // Match date format like "2024/10/18"
];
for (var i = 0; i < textFrames.length; i++) {
var textFrame = textFrames[i];
for (var j = 0; j < datePatterns.length; j++) {
if (textFrame.contents.match(datePatterns[j].pattern)) {
var newDateString = getCurrentDateString(datePatterns[j].format);
textFrame.contents = newDateString;
break; // Exit the loop once a match is found and updated
}
}
}
}

// Main script execution
if (app.documents.length > 0) {
var doc = app.activeDocument;
// Update all previously created text frames containing dates to the current date
updateDateTextFrames(doc);
alert("Date text frames updated to the current date.");
} else {
alert("No document is open.");
}

I noticed that the above links are all gone. Here is what I just found, for anyone looking for dateandtimes script and landed here.
http://illustrator.hilfdirselbst.ch/dokuwiki/_media/english/scripts/javascript/wolfgangreszel/wr-dateandtime.js

I found this handy function to get the current time in full datetime string. There are other functions of the date object to get the year, month, date, hour, minute, second, and milisecond. You also have a full set of 'set' functions.

new Date().toLocaleString()

the result looks something like: Friday, June 12 2020 15:18:41

I could not find a formal description of this date object, but I found 45 functions available using the object.reflect property. Here is my listMethods() code.

function listMethods(anObj) {

// list the methods of given object to the console
// this is needrf as I suspect the documentation may not be complete
    var mets = anObj.reflect.methods;
    $.writeln('There are ' + mets.length + ' methods');
    for (var i=0; i<mets.length; i++) {
        $.writeln(i + ". " + mets[i].name + "=[" + anObj[mets[i].name] + "]");
        };
    return null;

    };

I am running Illustrator 2020 CS6.

Introducing: Insert Page Numbers v 2

CarlosCanto wrote the one above for Illustrator, still works for me in CC2018/high sierra.

if your final product is PDF

Create a custom dynamic stamp using Acrobat DC