Proper way to remove 1970-01-01 from getLocalTime() ?

[robby3]

ServiceNow seems to store all 'time' columns as the 1970-01-01 + time.   So when I run this

var gdt = new GlideDateTime();

gdt.getLocalTime()

I get 1970-01-01 14:59:57

What are the best practices for removing the 1970-01-01?   I just want 14:59:57   (actually, I just want the hour and minute in separate variables, but that's a different question).

I can do a string replace to nuke 1970-01-01 but that feels like a kludge.   I can't figure out how you can specify the date format to GlideDateTime. setValueUTC(gdt, "HH:mm") does not seem to work... it returns blank.

So how would you do this?

Thanks!

-Robby

[robby3 · Accepted solution]

I was able to solve the issue - getNumericValue() is the key. It gets us milliseconds since unix epoc (which is 1970-1-1 00:00:00).

So we can convert that to hours/minutes with some simple math.  

   var gdt = new GlideDateTime();

   var gdtTime = new GlideDateTime(gdt.getLocalTime());

   var imsTime = gdtTime.getNumericValue();

   var imsInHour = 3600000;

   var imsInMinute = 60000;

   var iLocalHours = Math.floor(imsTime / imsInHour).toFixed(0);

   var iLocalMinutes = Math.floor((imsTime - (iLocalHours * imsInHour)) / imsInMinute).toFixed(0);

I don't think max int will be an issue since the number of milliseconds in 24 hours = 86,400,000.