[lp_date_offsetToUTC] at tagSwap.net: Open Source Lasso Code

[lp_date_offsetToUTC]

Description

Link: [lp_date_offsetToUTC]

Author: Bil Corry

Category: Date

Version: 8.x

License: Public Domain

Posted: Feb. 26, 2006

Updated: Sep. 06, 2006

More by this author...

Returns the date at UTC/GMT given a date with a specified timezone offset.

Requires [lp_date_stringtodate] [lp_string_getnumeric] [lp_date_stringtoOffset]

Parameters

-date	date, required	The date to convert to UTC/GMT.
-timezone_offset	string, required	The timezone offset. In the format +hhmm or -hhmm.

Sample Usage

(lp_date_offsetToUTC: (date:'2/20/2006 7:00:00'), '-0500'); // returns 02/20/2006 12:00:00 GMT

Source Code

Click the "Download" button below to retrieve a copy of this tag, including the complete documentation and sample usage shown on this page. Place the downloaded ".inc" file in your LassoStartup folder, restart Lasso, and you can begin using this tag immediately.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

[

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;

]

Related Tags

Comments

none