Language List

Valid languages of the date and time pattern letters. Use the ISO 639-1 code unless it doesn't exist, in which case, use the ISO 639-2 code.

ISO 639-2 Code	ISO 639-1 Code	English Name of Language
aar	aa	Afar
abk	ab	Abkhazian
ace		Achinese
ach		Acoli
ada		Adangme
ady		Adyghe; Adygei
afa		Afro-Asiatic languages
afh		Afrihili
afr	af	Afrikaans
ain		Ainu
aka	ak	Akan
akk		Akkadian
alb (B) sqi (T)	sq	Albanian
ale		Aleut
alg		Algonquian languages
alt		Southern Altai
amh	am	Amharic
ang		English, Old (ca.450-1100)
anp		Angika
apa		Apache languages
ara	ar	Arabic
arc		Official Aramaic (700-300 BCE); Imperial Aramaic (700-300 BCE)
arg	an	Aragonese
arm (B) hye (T)	hy	Armenian
arn		Mapudungun; Mapuche
arp		Arapaho
art		Artificial languages
arw		Arawak
asm	as	Assamese
ast		Asturian; Bable; Leonese; Asturleonese
ath		Athapascan languages
aus		Australian languages
ava	av	Avaric
ave	ae	Avestan
awa		Awadhi
aym	ay	Aymara
aze	az	Azerbaijani
bad		Banda languages
bai		Bamileke languages
bak	ba	Bashkir
bal		Baluchi
bam	bm	Bambara
ban		Balinese
baq (B) eus (T)	eu	Basque
bas		Basa
bat		Baltic languages
bej		Beja; Bedawiyet
bel	be	Belarusian
bem		Bemba
ben	bn	Bengali
ber		Berber languages
bho		Bhojpuri
bih	bh	Bihari languages
bik		Bikol
bin		Bini; Edo
bis	bi	Bislama
bla		Siksika
bnt		Bantu languages
tib (B) bod (T)	bo	Tibetan
bos	bs	Bosnian
bra		Braj
bre	br	Breton
btk		Batak languages
bua		Buriat
bug		Buginese
bul	bg	Bulgarian
bur (B) mya (T)	my	Burmese
byn		Blin; Bilin
cad		Caddo
cai		Central American Indian languages
car		Galibi Carib
cat	ca	Catalan; Valencian
cau		Caucasian languages
ceb		Cebuano
cel		Celtic languages
cze (B) ces (T)	cs	Czech
cha	ch	Chamorro
chb		Chibcha
che	ce	Chechen
chg		Chagatai
chi (B) zho (T)	zh	Chinese
chk		Chuukese
chm		Mari
chn		Chinook jargon
cho		Choctaw
chp		Chipewyan; Dene Suline
chr		Cherokee
chu	cu	Church Slavonic, Old Slavonic, Old Church Slavonic
chv	cv	Chuvash
chy		Cheyenne
cmc		Chamic languages
cnr		Montenegrin
cop		Coptic
cor	kw	Cornish
cos	co	Corsican
cpe		Creoles and pidgins, English based
cpf		Creoles and pidgins, French-based
cpp		Creoles and pidgins, Portuguese-based
cre	cr	Cree
crh		Crimean Tatar; Crimean Turkish
crp		Creoles and pidgins
csb		Kashubian
cus		Cushitic languages
wel (B) cym (T)	cy	Welsh
cze (B) ces (T)	cs	Czech
dak		Dakota
dan	da	Danish
dar		Dargwa
day		Land Dayak languages
del		Delaware
den		Slave (Athapascan)
ger (B) deu (T)	de	German
dgr		Dogrib
din		Dinka
div	dv	Divehi; Dhivehi; Maldivian
doi		Dogri
dra		Dravidian languages
dsb		Lower Sorbian
dua		Duala
dum		Dutch, Middle (ca.1050-1350)
dut (B) nld (T)	nl	Dutch; Flemish
dyu		Dyula
dzo	dz	Dzongkha
efi		Efik
egy		Egyptian (Ancient)
eka		Ekajuk
gre (B) ell (T)	el	Greek, Modern (1453-)
elx		Elamite
eng	en	English
enm		English, Middle (1100-1500)
epo	eo	Esperanto
est	et	Estonian
baq (B) eus (T)	eu	Basque
ewe	ee	Ewe
ewo		Ewondo
fan		Fang
fao	fo	Faroese
per (B) fas (T)	fa	Persian
fat		Fanti
fij	fj	Fijian
fil		Filipino; Pilipino
fin	fi	Finnish
fiu		Finno-Ugrian languages
fon		Fon
fre (B) fra (T)	fr	French
fre (B) fra (T)	fr	French
frm		French, Middle (ca.1400-1600)
fro		French, Old (842-ca.1400)
frr		Northern Frisian
frs		Eastern Frisian
fry	fy	Western Frisian
ful	ff	Fulah
fur		Friulian
gaa		Ga
gay		Gayo
gba		Gbaya
gem		Germanic languages
geo (B) kat (T)	ka	Georgian
ger (B) deu (T)	de	German
gez		Geez
gil		Gilbertese
gla	gd	Gaelic; Scottish Gaelic
gle	ga	Irish
glg	gl	Galician
glv	gv	Manx
gmh		German, Middle High (ca.1050-1500)
goh		German, Old High (ca.750-1050)
gon		Gondi
gor		Gorontalo
got		Gothic
grb		Grebo
grc		Greek, Ancient (to 1453)
gre (B) ell (T)	el	Greek, Modern (1453-)
grn	gn	Guarani
gsw		Swiss German; Alemannic; Alsatian
guj	gu	Gujarati
gwi		Gwich'in
hai		Haida
hat	ht	Haitian; Haitian Creole
hau	ha	Hausa
haw		Hawaiian
heb	he	Hebrew
her	hz	Herero
hil		Hiligaynon
him		Himachali languages; Western Pahari languages
hin	hi	Hindi
hit		Hittite
hmn		Hmong; Mong
hmo	ho	Hiri Motu
hrv	hr	Croatian
hsb		Upper Sorbian
hun	hu	Hungarian
hup		Hupa
arm (B) hye (T)	hy	Armenian
iba		Iban
ibo	ig	Igbo
ice (B) isl (T)	is	Icelandic
ido	io	Ido
iii	ii	Sichuan Yi; Nuosu
ijo		Ijo languages
iku	iu	Inuktitut
ile	ie	Interlingue; Occidental
ilo		Iloko
ina	ia	Interlingua (International Auxiliary Language Association)
inc		Indic languages
ind	id	Indonesian
ine		Indo-European languages
inh		Ingush
ipk	ik	Inupiaq
ira		Iranian languages
iro		Iroquoian languages
ice (B) isl (T)	is	Icelandic
ita	it	Italian
jav	jv	Javanese
jbo		Lojban
jpn	ja	Japanese
jpr		Judeo-Persian
jrb		Judeo-Arabic
kaa		Kara-Kalpak
kab		Kabyle
kac		Kachin; Jingpho
kal	kl	Kalaallisut; Greenlandic
kam		Kamba
kan	kn	Kannada
kar		Karen languages
kas	ks	Kashmiri
geo (B) kat (T)	ka	Georgian
kau	kr	Kanuri
kaw		Kawi
kaz	kk	Kazakh
kbd		Kabardian
kha		Khasi
khi		Khoisan languages
khm	km	Central Khmer
kho		Khotanese; Sakan
kik	ki	Kikuyu; Gikuyu
kin	rw	Kinyarwanda
kir	ky	Kirghiz; Kyrgyz
kmb		Kimbundu
kok		Konkani
kom	kv	Komi
kon	kg	Kongo
kor	ko	Korean
kos		Kosraean
kpe		Kpelle
krc		Karachay-Balkar
krl		Karelian
kro		Kru languages
kru		Kurukh
kua	kj	Kuanyama; Kwanyama
kum		Kumyk
kur	ku	Kurdish
kut		Kutenai
lad		Ladino
lah		Lahnda
lam		Lamba
lao	lo	Lao
lat	la	Latin
lav	lv	Latvian
lez		Lezghian
lim	li	Limburgan; Limburger; Limburgish
lin	ln	Lingala
lit	lt	Lithuanian
lol		Mongo
loz		Lozi
ltz	lb	Luxembourgish; Letzeburgesch
lua		Luba-Lulua
lub	lu	Luba-Katanga
lug	lg	Ganda
lui		Luiseno
lun		Lunda
luo		Luo (Kenya and Tanzania)
lus		Lushai
mac (B) mkd (T)	mk	Macedonian
mad		Madurese
mag		Magahi
mah	mh	Marshallese
mai		Maithili
mak		Makasar
mal	ml	Malayalam
man		Mandingo
mao (B) mri (T)	mi	Maori
map		Austronesian languages
mar	mr	Marathi
mas		Masai
may (B) msa (T)	ms	Malay
mdf		Moksha
mdr		Mandar
men		Mende
mga		Irish, Middle (900-1200)
mic		Mi'kmaq; Micmac
min		Minangkabau
mis		Uncoded languages
mac (B) mkd (T)	mk	Macedonian
mkh		Mon-Khmer languages
mlg	mg	Malagasy
mlt	mt	Maltese
mnc		Manchu
mni		Manipuri
mno		Manobo languages
moh		Mohawk
mon	mn	Mongolian
mos		Mossi
mao (B) mri (T)	mi	Maori
may (B) msa (T)	ms	Malay
mul		Multiple languages
mun		Munda languages
mus		Creek
mwl		Mirandese
mwr		Marwari
bur (B) mya (T)	my	Burmese
myn		Mayan languages
myv		Erzya
nah		Nahuatl languages
nai		North American Indian languages
nap		Neapolitan
nau	na	Nauru
nav	nv	Navajo; Navaho
nbl	nr	Ndebele, South; South Ndebele
nde	nd	Ndebele, North; North Ndebele
ndo	ng	Ndonga
nds		Low German; Low Saxon; German, Low; Saxon, Low
nep	ne	Nepali
new		Nepal Bhasa; Newari
nia		Nias
nic		Niger-Kordofanian languages
niu		Niuean
dut (B) nld (T)	nl	Dutch; Flemish
nno	nn	Norwegian Nynorsk; Nynorsk, Norwegian
nob	nb	Bokmål, Norwegian; Norwegian Bokmål
nog		Nogai
non		Norse, Old
nor	no	Norwegian
nqo		N'Ko
nso		Pedi; Sepedi; Northern Sotho
nub		Nubian languages
nwc		Classical Newari; Old Newari; Classical Nepal Bhasa
nya	ny	Chichewa; Chewa; Nyanja
nym		Nyamwezi
nyn		Nyankole
nyo		Nyoro
nzi		Nzima
oci	oc	Occitan (post 1500)
oji	oj	Ojibwa
ori	or	Oriya
orm	om	Oromo
osa		Osage
oss	os	Ossetian; Ossetic
ota		Turkish, Ottoman (1500-1928)
oto		Otomian languages
paa		Papuan languages
pag		Pangasinan
pal		Pahlavi
pam		Pampanga; Kapampangan
pan	pa	Panjabi; Punjabi
pap		Papiamento
pau		Palauan
peo		Persian, Old (ca.600-400 B.C.)
per (B) fas (T)	fa	Persian
phi		Philippine languages
phn		Phoenician
pli	pi	Pali
pol	pl	Polish
pon		Pohnpeian
por	pt	Portuguese
pra		Prakrit languages
pro		Provençal, Old (to 1500);Occitan, Old (to 1500)
pus	ps	Pushto; Pashto
qaa-qtz		Reserved for local use
que	qu	Quechua
raj		Rajasthani
rap		Rapanui
rar		Rarotongan; Cook Islands Maori
roa		Romance languages
roh	rm	Romansh
rom		Romany
rum (B) ron (T)	ro	Romanian; Moldavian; Moldovan
rum (B) ron (T)	ro	Romanian; Moldavian; Moldovan
run	rn	Rundi
rup		Aromanian; Arumanian; Macedo-Romanian
rus	ru	Russian
sad		Sandawe
sag	sg	Sango
sah		Yakut
sai		South American Indian languages
sal		Salishan languages
sam		Samaritan Aramaic
san	sa	Sanskrit
sas		Sasak
sat		Santali
scn		Sicilian
sco		Scots
sel		Selkup
sem		Semitic languages
sga		Irish, Old (to 900)
sgn		Sign Languages
shn		Shan
sid		Sidamo
sin	si	Sinhala; Sinhalese
sio		Siouan languages
sit		Sino-Tibetan languages
sla		Slavic languages
slo (B) slk (T)	sk	Slovak
slo (B) slk (T)	sk	Slovak
slv	sl	Slovenian
sma		Southern Sami
sme	se	Northern Sami
smi		Sami languages
smj		Lule Sami
smn		Inari Sami
smo	sm	Samoan
sms		Skolt Sami
sna	sn	Shona
snd	sd	Sindhi
snk		Soninke
sog		Sogdian
som	so	Somali
son		Songhai languages
sot	st	Sotho, Southern
spa	es	Spanish; Castilian
alb (B) sqi (T)	sq	Albanian
srd	sc	Sardinian
srn		Sranan Tongo
srp	sr	Serbian
srr		Serer
ssa		Nilo-Saharan languages
ssw	ss	Swati
suk		Sukuma
sun	su	Sundanese
sus		Susu
sux		Sumerian
swa	sw	Swahili
swe	sv	Swedish
syc		Classical Syriac
syr		Syriac
tah	ty	Tahitian
tai		Tai languages
tam	ta	Tamil
tat	tt	Tatar
tel	te	Telugu
tem		Timne
ter		Tereno
tet		Tetum
tgk	tg	Tajik
tgl	tl	Tagalog
tha	th	Thai
tib (B) bod (T)	bo	Tibetan
tig		Tigre
tir	ti	Tigrinya
tiv		Tiv
tkl		Tokelau
tlh		Klingon; tlhIngan-Hol
tli		Tlingit
tmh		Tamashek
tog		Tonga (Nyasa)
ton	to	Tonga (Tonga Islands)
tpi		Tok Pisin
tsi		Tsimshian
tsn	tn	Tswana
tso	ts	Tsonga
tuk	tk	Turkmen
tum		Tumbuka
tup		Tupi languages
tur	tr	Turkish
tut		Altaic languages
tvl		Tuvalu
twi	tw	Twi
tyv		Tuvinian
udm		Udmurt
uga		Ugaritic
uig	ug	Uighur; Uyghur
ukr	uk	Ukrainian
umb		Umbundu
und		Undetermined
urd	ur	Urdu
uzb	uz	Uzbek
vai		Vai
ven	ve	Venda
vie	vi	Vietnamese
vol	vo	Volapük
vot		Votic
wak		Wakashan languages
wal		Wolaitta; Wolaytta
war		Waray
was		Washo
wel (B) cym (T)	cy	Welsh
wen		Sorbian languages
wln	wa	Walloon
wol	wo	Wolof
xal		Kalmyk; Oirat
xho	xh	Xhosa
yao		Yao
yap		Yapese
yid	yi	Yiddish
yor	yo	Yoruba
ypk		Yupik languages
zap		Zapotec
zbl		Blissymbols; Blissymbolics; Bliss
zen		Zenaga
zgh		Standard Moroccan Tamazight
zha	za	Zhuang; Chuang
chi (B) zho (T)	zh	Chinese
znd		Zande languages
zul	zu	Zulu
zun		Zuni
zxx		No linguistic content; Not applicable
zza		Zaza; Dimili; Dimli; Kirdki; Kirmanjki; Zazaki

Taken from loc.gov.