Time zone list add to pre-built lists

I wrote a snippet to manually generate a list for me in a node which I can copy and paste in to a webform select field. Until this is added to a pre-built list, thought I'd share it with anyone that wants it.

<?php
 foreach (timezone_identifiers_list() as $key => $value){
    echo $key."|".$value."<br>";
 }
?>

the result of above code below, which is what I copy and paste in to the webform select field options:
0|Africa/Abidjan
1|Africa/Accra
2|Africa/Addis_Ababa
3|Africa/Algiers
4|Africa/Asmara
5|Africa/Asmera
6|Africa/Bamako
7|Africa/Bangui
8|Africa/Banjul
9|Africa/Bissau
10|Africa/Blantyre
11|Africa/Brazzaville
12|Africa/Bujumbura
13|Africa/Cairo
14|Africa/Casablanca
15|Africa/Ceuta
16|Africa/Conakry
17|Africa/Dakar
18|Africa/Dar_es_Salaam
19|Africa/Djibouti
20|Africa/Douala
21|Africa/El_Aaiun
22|Africa/Freetown
23|Africa/Gaborone
24|Africa/Harare
25|Africa/Johannesburg
26|Africa/Kampala
27|Africa/Khartoum
28|Africa/Kigali
29|Africa/Kinshasa
30|Africa/Lagos
31|Africa/Libreville
32|Africa/Lome
33|Africa/Luanda
34|Africa/Lubumbashi
35|Africa/Lusaka
36|Africa/Malabo
37|Africa/Maputo
38|Africa/Maseru
39|Africa/Mbabane
40|Africa/Mogadishu
41|Africa/Monrovia
42|Africa/Nairobi
43|Africa/Ndjamena
44|Africa/Niamey
45|Africa/Nouakchott
46|Africa/Ouagadougou
47|Africa/Porto-Novo
48|Africa/Sao_Tome
49|Africa/Timbuktu
50|Africa/Tripoli
51|Africa/Tunis
52|Africa/Windhoek
53|America/Adak
54|America/Anchorage
55|America/Anguilla
56|America/Antigua
57|America/Araguaina
58|America/Argentina/Buenos_Aires
59|America/Argentina/Catamarca
60|America/Argentina/ComodRivadavia
61|America/Argentina/Cordoba
62|America/Argentina/Jujuy
63|America/Argentina/La_Rioja
64|America/Argentina/Mendoza
65|America/Argentina/Rio_Gallegos
66|America/Argentina/Salta
67|America/Argentina/San_Juan
68|America/Argentina/San_Luis
69|America/Argentina/Tucuman
70|America/Argentina/Ushuaia
71|America/Aruba
72|America/Asuncion
73|America/Atikokan
74|America/Atka
75|America/Bahia
76|America/Barbados
77|America/Belem
78|America/Belize
79|America/Blanc-Sablon
80|America/Boa_Vista
81|America/Bogota
82|America/Boise
83|America/Buenos_Aires
84|America/Cambridge_Bay
85|America/Campo_Grande
86|America/Cancun
87|America/Caracas
88|America/Catamarca
89|America/Cayenne
90|America/Cayman
91|America/Chicago
92|America/Chihuahua
93|America/Coral_Harbour
94|America/Cordoba
95|America/Costa_Rica
96|America/Cuiaba
97|America/Curacao
98|America/Danmarkshavn
99|America/Dawson
100|America/Dawson_Creek
101|America/Denver
102|America/Detroit
103|America/Dominica
104|America/Edmonton
105|America/Eirunepe
106|America/El_Salvador
107|America/Ensenada
108|America/Fort_Wayne
109|America/Fortaleza
110|America/Glace_Bay
111|America/Godthab
112|America/Goose_Bay
113|America/Grand_Turk
114|America/Grenada
115|America/Guadeloupe
116|America/Guatemala
117|America/Guayaquil
118|America/Guyana
119|America/Halifax
120|America/Havana
121|America/Hermosillo
122|America/Indiana/Indianapolis
123|America/Indiana/Knox
124|America/Indiana/Marengo
125|America/Indiana/Petersburg
126|America/Indiana/Tell_City
127|America/Indiana/Vevay
128|America/Indiana/Vincennes
129|America/Indiana/Winamac
130|America/Indianapolis
131|America/Inuvik
132|America/Iqaluit
133|America/Jamaica
134|America/Jujuy
135|America/Juneau
136|America/Kentucky/Louisville
137|America/Kentucky/Monticello
138|America/Knox_IN
139|America/La_Paz
140|America/Lima
141|America/Los_Angeles
142|America/Louisville
143|America/Maceio
144|America/Managua
145|America/Manaus
146|America/Marigot
147|America/Martinique
148|America/Matamoros
149|America/Mazatlan
150|America/Mendoza
151|America/Menominee
152|America/Merida
153|America/Mexico_City
154|America/Miquelon
155|America/Moncton
156|America/Monterrey
157|America/Montevideo
158|America/Montreal
159|America/Montserrat
160|America/Nassau
161|America/New_York
162|America/Nipigon
163|America/Nome
164|America/Noronha
165|America/North_Dakota/Center
166|America/North_Dakota/New_Salem
167|America/Ojinaga
168|America/Panama
169|America/Pangnirtung
170|America/Paramaribo
171|America/Phoenix
172|America/Port-au-Prince
173|America/Port_of_Spain
174|America/Porto_Acre
175|America/Porto_Velho
176|America/Puerto_Rico
177|America/Rainy_River
178|America/Rankin_Inlet
179|America/Recife
180|America/Regina
181|America/Resolute
182|America/Rio_Branco
183|America/Rosario
184|America/Santa_Isabel
185|America/Santarem
186|America/Santiago
187|America/Santo_Domingo
188|America/Sao_Paulo
189|America/Scoresbysund
190|America/Shiprock
191|America/St_Barthelemy
192|America/St_Johns
193|America/St_Kitts
194|America/St_Lucia
195|America/St_Thomas
196|America/St_Vincent
197|America/Swift_Current
198|America/Tegucigalpa
199|America/Thule
200|America/Thunder_Bay
201|America/Tijuana
202|America/Toronto
203|America/Tortola
204|America/Vancouver
205|America/Virgin
206|America/Whitehorse
207|America/Winnipeg
208|America/Yakutat
209|America/Yellowknife
210|Antarctica/Casey
211|Antarctica/Davis
212|Antarctica/DumontDUrville
213|Antarctica/Mawson
214|Antarctica/McMurdo
215|Antarctica/Palmer
216|Antarctica/Rothera
217|Antarctica/South_Pole
218|Antarctica/Syowa
219|Antarctica/Vostok
220|Arctic/Longyearbyen
221|Asia/Aden
222|Asia/Almaty
223|Asia/Amman
224|Asia/Anadyr
225|Asia/Aqtau
226|Asia/Aqtobe
227|Asia/Ashgabat
228|Asia/Ashkhabad
229|Asia/Baghdad
230|Asia/Bahrain
231|Asia/Baku
232|Asia/Bangkok
233|Asia/Beirut
234|Asia/Bishkek
235|Asia/Brunei
236|Asia/Calcutta
237|Asia/Choibalsan
238|Asia/Chongqing
239|Asia/Chungking
240|Asia/Colombo
241|Asia/Dacca
242|Asia/Damascus
243|Asia/Dhaka
244|Asia/Dili
245|Asia/Dubai
246|Asia/Dushanbe
247|Asia/Gaza
248|Asia/Harbin
249|Asia/Ho_Chi_Minh
250|Asia/Hong_Kong
251|Asia/Hovd
252|Asia/Irkutsk
253|Asia/Istanbul
254|Asia/Jakarta
255|Asia/Jayapura
256|Asia/Jerusalem
257|Asia/Kabul
258|Asia/Kamchatka
259|Asia/Karachi
260|Asia/Kashgar
261|Asia/Kathmandu
262|Asia/Katmandu
263|Asia/Kolkata
264|Asia/Krasnoyarsk
265|Asia/Kuala_Lumpur
266|Asia/Kuching
267|Asia/Kuwait
268|Asia/Macao
269|Asia/Macau
270|Asia/Magadan
271|Asia/Makassar
272|Asia/Manila
273|Asia/Muscat
274|Asia/Nicosia
275|Asia/Novokuznetsk
276|Asia/Novosibirsk
277|Asia/Omsk
278|Asia/Oral
279|Asia/Phnom_Penh
280|Asia/Pontianak
281|Asia/Pyongyang
282|Asia/Qatar
283|Asia/Qyzylorda
284|Asia/Rangoon
285|Asia/Riyadh
286|Asia/Saigon
287|Asia/Sakhalin
288|Asia/Samarkand
289|Asia/Seoul
290|Asia/Shanghai
291|Asia/Singapore
292|Asia/Taipei
293|Asia/Tashkent
294|Asia/Tbilisi
295|Asia/Tehran
296|Asia/Tel_Aviv
297|Asia/Thimbu
298|Asia/Thimphu
299|Asia/Tokyo
300|Asia/Ujung_Pandang
301|Asia/Ulaanbaatar
302|Asia/Ulan_Bator
303|Asia/Urumqi
304|Asia/Vientiane
305|Asia/Vladivostok
306|Asia/Yakutsk
307|Asia/Yekaterinburg
308|Asia/Yerevan
309|Atlantic/Azores
310|Atlantic/Bermuda
311|Atlantic/Canary
312|Atlantic/Cape_Verde
313|Atlantic/Faeroe
314|Atlantic/Faroe
315|Atlantic/Jan_Mayen
316|Atlantic/Madeira
317|Atlantic/Reykjavik
318|Atlantic/South_Georgia
319|Atlantic/St_Helena
320|Atlantic/Stanley
321|Australia/ACT
322|Australia/Adelaide
323|Australia/Brisbane
324|Australia/Broken_Hill
325|Australia/Canberra
326|Australia/Currie
327|Australia/Darwin
328|Australia/Eucla
329|Australia/Hobart
330|Australia/LHI
331|Australia/Lindeman
332|Australia/Lord_Howe
333|Australia/Melbourne
334|Australia/North
335|Australia/NSW
336|Australia/Perth
337|Australia/Queensland
338|Australia/South
339|Australia/Sydney
340|Australia/Tasmania
341|Australia/Victoria
342|Australia/West
343|Australia/Yancowinna
344|Brazil/Acre
345|Brazil/DeNoronha
346|Brazil/East
347|Brazil/West
348|Canada/Atlantic
349|Canada/Central
350|Canada/East-Saskatchewan
351|Canada/Eastern
352|Canada/Mountain
353|Canada/Newfoundland
354|Canada/Pacific
355|Canada/Saskatchewan
356|Canada/Yukon
357|CET
358|Chile/Continental
359|Chile/EasterIsland
360|CST6CDT
361|Cuba
362|EET
363|Egypt
364|Eire
365|EST
366|EST5EDT
367|Etc/GMT
368|Etc/GMT+0
369|Etc/GMT+1
370|Etc/GMT+10
371|Etc/GMT+11
372|Etc/GMT+12
373|Etc/GMT+2
374|Etc/GMT+3
375|Etc/GMT+4
376|Etc/GMT+5
377|Etc/GMT+6
378|Etc/GMT+7
379|Etc/GMT+8
380|Etc/GMT+9
381|Etc/GMT-0
382|Etc/GMT-1
383|Etc/GMT-10
384|Etc/GMT-11
385|Etc/GMT-12
386|Etc/GMT-13
387|Etc/GMT-14
388|Etc/GMT-2
389|Etc/GMT-3
390|Etc/GMT-4
391|Etc/GMT-5
392|Etc/GMT-6
393|Etc/GMT-7
394|Etc/GMT-8
395|Etc/GMT-9
396|Etc/GMT0
397|Etc/Greenwich
398|Etc/UCT
399|Etc/Universal
400|Etc/UTC
401|Etc/Zulu
402|Europe/Amsterdam
403|Europe/Andorra
404|Europe/Athens
405|Europe/Belfast
406|Europe/Belgrade
407|Europe/Berlin
408|Europe/Bratislava
409|Europe/Brussels
410|Europe/Bucharest
411|Europe/Budapest
412|Europe/Chisinau
413|Europe/Copenhagen
414|Europe/Dublin
415|Europe/Gibraltar
416|Europe/Guernsey
417|Europe/Helsinki
418|Europe/Isle_of_Man
419|Europe/Istanbul
420|Europe/Jersey
421|Europe/Kaliningrad
422|Europe/Kiev
423|Europe/Lisbon
424|Europe/Ljubljana
425|Europe/London
426|Europe/Luxembourg
427|Europe/Madrid
428|Europe/Malta
429|Europe/Mariehamn
430|Europe/Minsk
431|Europe/Monaco
432|Europe/Moscow
433|Europe/Nicosia
434|Europe/Oslo
435|Europe/Paris
436|Europe/Podgorica
437|Europe/Prague
438|Europe/Riga
439|Europe/Rome
440|Europe/Samara
441|Europe/San_Marino
442|Europe/Sarajevo
443|Europe/Simferopol
444|Europe/Skopje
445|Europe/Sofia
446|Europe/Stockholm
447|Europe/Tallinn
448|Europe/Tirane
449|Europe/Tiraspol
450|Europe/Uzhgorod
451|Europe/Vaduz
452|Europe/Vatican
453|Europe/Vienna
454|Europe/Vilnius
455|Europe/Volgograd
456|Europe/Warsaw
457|Europe/Zagreb
458|Europe/Zaporozhye
459|Europe/Zurich
460|Factory
461|GB
462|GB-Eire
463|GMT
464|GMT+0
465|GMT-0
466|GMT0
467|Greenwich
468|Hongkong
469|HST
470|Iceland
471|Indian/Antananarivo
472|Indian/Chagos
473|Indian/Christmas
474|Indian/Cocos
475|Indian/Comoro
476|Indian/Kerguelen
477|Indian/Mahe
478|Indian/Maldives
479|Indian/Mauritius
480|Indian/Mayotte
481|Indian/Reunion
482|Iran
483|Israel
484|Jamaica
485|Japan
486|Kwajalein
487|Libya
488|MET
489|Mexico/BajaNorte
490|Mexico/BajaSur
491|Mexico/General
492|MST
493|MST7MDT
494|Navajo
495|NZ
496|NZ-CHAT
497|Pacific/Apia
498|Pacific/Auckland
499|Pacific/Chatham
500|Pacific/Easter
501|Pacific/Efate
502|Pacific/Enderbury
503|Pacific/Fakaofo
504|Pacific/Fiji
505|Pacific/Funafuti
506|Pacific/Galapagos
507|Pacific/Gambier
508|Pacific/Guadalcanal
509|Pacific/Guam
510|Pacific/Honolulu
511|Pacific/Johnston
512|Pacific/Kiritimati
513|Pacific/Kosrae
514|Pacific/Kwajalein
515|Pacific/Majuro
516|Pacific/Marquesas
517|Pacific/Midway
518|Pacific/Nauru
519|Pacific/Niue
520|Pacific/Norfolk
521|Pacific/Noumea
522|Pacific/Pago_Pago
523|Pacific/Palau
524|Pacific/Pitcairn
525|Pacific/Ponape
526|Pacific/Port_Moresby
527|Pacific/Rarotonga
528|Pacific/Saipan
529|Pacific/Samoa
530|Pacific/Tahiti
531|Pacific/Tarawa
532|Pacific/Tongatapu
533|Pacific/Truk
534|Pacific/Wake
535|Pacific/Wallis
536|Pacific/Yap
537|Poland
538|Portugal
539|PRC
540|PST8PDT
541|ROC
542|ROK
543|Singapore
544|Turkey
545|UCT
546|Universal
547|US/Alaska
548|US/Aleutian
549|US/Arizona
550|US/Central
551|US/East-Indiana
552|US/Eastern
553|US/Hawaii
554|US/Indiana-Starke
555|US/Michigan
556|US/Mountain
557|US/Pacific
558|US/Pacific-New
559|US/Samoa
560|UTC
561|W-SU
562|WET
563|Zulu