Here we check the valid strings for the argument of the Date:: class constructor to create Date object under JavaScript, ie,

<script type="text/javascript">
var objDate;
objDate = new Date("May 02, 2025 01:25:30 GMT+0200");
<script>

We are trying to get the PHP date format string to format date time to form the pipeline PHP DateTime() => js Date() => document.write() to output on screen. Here is the summary of cases we tested for you:

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
0	May 02, 2025 01:25:30 GMT+0200	+	+	+	+	+	+
1	May 02 2025 01:25:30 GMT+0200	+	+	+	+	+	+
2	May 02, 2025 01:25:30 GMT+2	+	+	+	+	+	+
3	2025-05-02 01:25:30 GMT+0200	-	+	-	-	+	+
4	2025-05-02 01:25:30 GMT+02:00	-	+	-	-	+	+
5	2025-05-02 01:25:30 GMT+200	-	+	-	-	+	+
6	02 May 2025 01:25:30+02:00	-	+	-	-	-	-
7	May 02 2025 01:25:30 GMT+2:00	-	+	+	-	+	+
8	May 02, 2025 01:25:30 GMT+02:00	-	+	+	-	+	+
9	2025-05-02 01:25:30 GMT+2	-	+	-	-	+	+
10	2025-05-02 01:25:30	-	+	-	-	+	+
11	2025-05-02T01:25:30+02:00	+	+	+	+	+	-
12	2025-05-02 01:25:30+02:00	-	+	-	-	-	-
13	05-02-2025 01:25:30 GMT+0200	+	+	-	-	-	+
14	05/02, 2025 01:25:30 GMT+0200	+	+	+	-	+	+
15	02-May-2025 01:25:30 GMT+0200	-	+	-	+	-	+

Tab. I: + Valid Date Time String for Javascript::Date() class, - Invalid.

JavaScript is very English speaking. In effect, among the 3 first universal formats, the English month abbreviation is used. As it can be observed that no pure numerical date string is found like "2025-05-02 01:25:30" to fit JavaScript syntax in all browsers. Please check this with your preferred browser.

Detail of JavaScript Tests

Below, the bold date time outputs at the right hand side of => are the JavaScript Date Class results.

0. Good Format "mmm dd, yyyy hh:mm:ss GMT+0200"

For example, May 02, 2025 01:25:30 GMT+0200 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
0	May 02, 2025 01:25:30 GMT+0200	+	+	+	+	+	+

This format is valid for all browsers in our hands, including Internet Explorer, Google Chrome, Firefox, Safari, Opera, Mobile Safari. On PHP, you get this DateTime format of the current time by

<?php
$objDateTime = new DateTime();
$strDateTime = $objDateTime->format("M d, Y H:i:s \G\M\TO");
?>

One observes that this is the Standard English Date Time expression.

1. Another Good Format "mmm dd yyyy hh:mm:ss GMT+0200"

For example, May 02 2025 01:25:30 GMT+0200 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
1	May 02 2025 01:25:30 GMT+0200	+	+	+	+	+	+

This format is also valid for all browsers in our hands, including IE, Google Chrome, Firefox, Safari, Opera, Safari Mobile. On PHP, you get this DateTime format of the current time by

<?php
$objDateTime = new DateTime();
$strDateTime = $objDateTime->format("M d Y H:i:s \G\M\TO");
?>

One notes that this is another English Date Time expression with timezone.

2. Good Format "mmm dd, yyyy hh:mm:ss GMT+2"

For example, May 02, 2025 01:25:30 GMT+2 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
2	May 02, 2025 01:25:30 GMT+2	+	+	+	+	+	+

As shown, you can shorten the timezone notification.

Bad Formats

All following date time strings are good for some browsers, but unfortunately bad for others.

3. Format "yyyy-mm-dd hh:mm:ss GMT+0200"

For example, 2025-05-02 01:25:30 GMT+0200 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
3	2025-05-02 01:25:30 GMT+0200	-	+	-	-	+	+

4. Format "yyyy-mm-dd hh:mm:ss GMT+02:00"

For example, 2025-05-02 01:25:30 GMT+02:00 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
4	2025-05-02 01:25:30 GMT+02:00	-	+	-	-	+	+

4. Format "yyyy-mm-dd hh:mm:ss GMT+0200"

For example, 2025-05-02 01:25:30 GMT+02:00 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
5	2025-05-02 01:25:30 GMT+200	-	+	-	-	+	+

6. Format "dd mmm yyyy hh:mm:ss+02:00"

For example, 02 May 2025 01:25:30+02:00 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
6	02 May 2025 01:25:30+02:00	-	+	-	-	-	-

7. Format "mmm dd yyyy hh:mm:ss GMT+02:00"

For example, May 02 2025 01:25:30 GMT+2:00 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
7	May 02 2025 01:25:30 GMT+2:00	-	+	+	-	+	+

8. Format "mmm dd, yyyy hh:mm:ss GMT+02:00"

For example, May 02, 2025 01:25:30 GMT+02:00 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
8	May 02, 2025 01:25:30 GMT+02:00	-	+	+	-	+	+

9. Format "yyyy-mmm-dd hh:mm:ss GMT+2"

For example, 2025-05-02 01:25:30 GMT+2 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
9	2025-05-02 01:25:30 GMT+2	-	+	-	-	+	+

10. Format "yyyy-mmm-dd hh:mm:ss"

For example, 2025-05-02 01:25:30 => Fri May 02 2025 01:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
10	2025-05-02 01:25:30	-	+	-	-	+	+

11. Format "yyyy-mmm-ddThh:mm:ss+02:00"

For example, 2025-05-02T01:25:30+02:00 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
11	2025-05-02T01:25:30+02:00	+	+	+	+	+	-

You get this format by PHP5 DateTime=>format('c'). It's regrettable that JavaScript Mobile Safari does not support this format, as this is the universal date time string, used by SQL server, MySQL Server, ...

12. Format "yyyy-mmm-dd hh:mm:ss GMT+02:00"

For example, 2025-05-02 01:25:30+02:00 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
12	2025-05-02 01:25:30+02:00	-	+	-	-	-	-

13. Format "mm-dd-yyyy hh:mm:ss GMT+0200"

For example, 05-02-2025 01:25:30 GMT+0200 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
13	05-02-2025 01:25:30 GMT+0200	+	+	-	-	-	+

14. Format "mm/dd, yyyy hh:mm:ss GMT+0200"

For example, 05/02, 2025 01:25:30 GMT+0200 => Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

#	js new Date() Feed	IE	Chrome	Firefox	Safari	Opera	Mobile
14	05/02, 2025 01:25:30 GMT+0200	+	+	+	-	+	+

JavaScript new Date() running results at one single glance under Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Below, we summarize the date time feed checked above in a single table under your current browser.

#	PHP DateTime->format	js new Date() Feed	js new Date() outputs
0	M d, Y H:i:s \G\M\TO	May 02, 2025 01:25:30 GMT+0200	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
1	M d Y H:i:s \G\M\TO	May 02 2025 01:25:30 GMT+0200	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
2		May 02, 2025 01:25:30 GMT+2	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
3	Y-m-d H:i:s \G\M\TO	2025-05-02 01:25:30 GMT+0200	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
4	Y-m-d H:i:s \G\M\TP	2025-05-02 01:25:30 GMT+02:00	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
5		2025-05-02 01:25:30 GMT+200	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
6	d M Y H:i:s \G\M\TP	02 May 2025 01:25:30+02:00	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
7		May 02 2025 01:25:30 GMT+2:00	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
8	M d Y H:i:s \G\M\TP	May 02, 2025 01:25:30 GMT+02:00	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
9		2025-05-02 01:25:30 GMT+2	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
10	Y-m-d H:i:s	2025-05-02 01:25:30	Fri May 02 2025 01:25:30 GMT+0000 (Coordinated Universal Time)
11	c	2025-05-02T01:25:30+02:00	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
12	Y-m-d H:i:sP	2025-05-02 01:25:30+02:00	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
13	m-d-Y H:i:s\G\M\TO	05-02-2025 01:25:30 GMT+0200	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
14	m/d, Y H:i:s\G\M\TO	05/02, 2025 01:25:30 GMT+0200	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)
15	d-M-Y H:i:s \G\M\TO	02-May-2025 01:25:30 GMT+0200	Thu May 01 2025 23:25:30 GMT+0000 (Coordinated Universal Time)

Tab II: Real-Time JavaScript Date() Results with different Date time feed. See php.net: date — Format a local time/date.

Here the column "PHP DateTime->format" gives the format string to be used to obtain the "js new Date() Feed" column for JavaScript Date Constructor. The last column "js new Date() outputs" is JavaScript running results given by new Date(Date-Time String):

<script type="text/javascript">
document.write(new Date("May 02, 2025 01:25:30 GMT+0200"));
</script>