Bit of code I was looking at

var gdtBST = new GlideDateTime();

var tz = Packages.java.util.TimeZone.getTimeZone("Europe\London");

gdtBST.setTZ(tz);

gdtBST.setDisplayValue(current.getDisplayValue('opened_at'));

var dT = gdtBST.toString();

var dateSection = dT.split(' ')[0]; //Gets the Date

var timeSection = dT.split(' ')[1]; //Gets the Time

current.u_call_log_date = dateSection;

current.u_call_log_time = timeSection;