[

define_tag:'lp_date_offsetToUTC',
	-description='Returns the date at UTC/GMT given a date with a specified timezone offset.',
	-priority='replace',
	-required='date',-copy,
	-required='timezone_offset';

	if: #date->type != 'date';
		#date = lp_date_stringtodate: (string: #date);
	/if;

	#date = (lp_date_utcToLocal: #date);

	local:'offset' = (lp_date_stringToOffset: #timezone_offset, -map);

	local:'hour' = #offset->(find:'hours');
	local:'minute' = #offset->(find:'minutes');
	if: (string:#timezone_offset)->(contains:'-');
		#minute *= -1;
	/if;

	#hour *= -1;
	#minute *= -1;

	#date = (date_add: #date, -hour=#hour, -minute=#minute);

	// add UTC/GMT marker
		
	#date = (date: #date->month '/' #date->day '/' #date->year ' ' #date->hour ':' #date->minute ':' #date->second ' GMT');

	return: #date;

/define_tag;

]