Re: VMS Software Bootcamp 2024

On 9/17/2024 7:06 PM, Arne Vajhøj wrote:

On 9/17/2024 3:42 PM, Tom Wade wrote:

I must admit I was a bit surprised to see it written in the way it was
as I am much more used to a 24-hour clock. I don't know if that's more
of a European thing than a US thing however.

>
I was quite disappointed to see it written that way.  VMS has always used 24 hour time, and the traditional DECUS US agendas were also listed that way, with sessions starting at 08:00 and some days ending at 23:00.

 The traditional VMS time text format is pretty good. Very difficult
to misunderstand.
 Of course in most programming languages today you can specify
the format to use.
 $ show time
   17-SEP-2024 19:03:14
$ type now.groovy
import java.text.*
 df1 = new SimpleDateFormat("HH:mm")
df2 = new SimpleDateFormat("hh:mm a")
 now = new Date()
println(df1.format(now))
println(df2.format(now))
$ groovy now.groovy
19:03
07:03 PM
$ type now.py
from time import *
 now = time()
print(strftime('%H:%M', localtime(now)))
print(strftime('%I:%M %p', localtime(now)))
$ python now.py
19:03
07:03 PM

The Bazaar philosophy of PHP is very obvious for this topic:
$ type now.php
<?php
date_default_timezone_set('EST');
$now = time();
// old style
echo sprintf("%s\r\n", date('H:i', $now));
echo sprintf("%s\r\n", date('h:i A', $now));
// C style
echo sprintf("%s\r\n", strftime('%H:%M', $now));
echo sprintf("%s\r\n", strftime('%I:%M %p', $now));
// new style
$dt = new DateTime();
$dt->setTimestamp($now);
echo sprintf("%s\r\n", $dt->format('H:i'));
echo sprintf("%s\r\n", $dt->format('h:i A'));
// ICU style (requires intl extension loaded)
if(extension_loaded('intl')) {
     $fmt1 = new IntlDateFormatter('EN-us');
     $fmt1->setPattern('HH:mm');
     $fmt2 = new IntlDateFormatter('EN-us');
     $fmt2->setPattern('hh:mm a');
     echo sprintf("%s\r\n", $fmt1->format($now));
     echo sprintf("%s\r\n", $fmt2->format($now));
}
?>
$ php now.php
20:32
08:32 PM
20:32
08:32 PM
20:32
08:32 PM
(Berryman PHP apparently does not come with INTL extension)
Arne