B

• Bengali calendar‎ (1 C, 1 P)
• Byzantine calendar‎ (3 P)

C

• Chinese calendars‎ (4 C, 10 P)

F

• French Republican calendar‎ (1 C, 18 P)

G

• Early Germanic calendar‎ (1 C, 5 P)
• Gregorian calendar‎ (2 C, 39 P)

H

• Hebrew calendar‎ (3 C, 26 P)
• Hindu calendar‎ (4 C, 50 P)

I

• Igbo calendar‎ (2 P)
• Iranian calendar‎ (1 C, 3 P)
• Islamic calendar‎ (3 C, 19 P)

J

• Julian calendar‎ (1 C, 45 P)

L

• Liturgical calendars‎ (3 C, 11 P)

M

• Mandaean calendar‎ (2 C, 3 P)
• Mesoamerican calendars‎ (2 C, 7 P)

N

• Nanakshahi calendar‎ (1 C, 3 P)
• Nepali calendar‎ (28 P)

O

• Observances on non-Gregorian calendars‎ (17 C, 32 P)
• Obsolete calendars‎ (5 C, 23 P)

P

• Pashto names for the months of the Solar Hijri calendar‎ (12 P)
• Published calendars‎ (3 C, 4 P)

S

• Slavic holidays‎ (3 C, 23 P)
• Solar Hijri calendar‎ (2 C, 1 P)

Z

• Zoroastrian calendar‎ (6 P)

• List of calendars

0–9

• 4–4–5 calendar
• 360-day calendar
• 365-day calendar
• 2002 renaming of Turkmen months and days of week

A

• Accounting period
• Akan calendar
• Armenian calendar
• Assyrian calendar
• Astronomical year numbering
• Azes era

B

• Baháʼí calendar
• Balinese saka calendar
• Berber calendar
• Borana calendar
• Broadcast calendar
• Buddhist calendar
• Bulgar calendar
• Burmese calendar
• Byzantine calendar

C

• Calendar of saints
• Cappadocian calendar
• Celtic calendar
• Cham calendar
• Cherokee calendar
• Chinese calendar
• Chinese calendar correspondence table
• Chongzhen calendar
• Chronograph of 354
• Coligny calendar

D

• Darian calendar
• Decimal calendar
• Discordian calendar
• Dreamspell

E

• Ethiopian calendar

F

• FIFA International Match Calendar
• Full Term

G

• Irish calendar
• Genka calendar
• Gezer calendar
• Gihō calendar
• Goki calendar

H

• Haabʼ
• Hanke–Henry Permanent Calendar
• Hmong calendar
• Holocene calendar
• Hōryaku calendar

I

• Igbo calendar
• Inter gravissimas
• International Fixed Calendar
• Iranian calendars
• ISO 8601
• ISO week date

J

• Jalali calendar
• Japanese calendar
• Javanese calendar
• Jōkyō calendar
• Revised Julian calendar

K

• Kansei calendar
• Korean calendar

L

• Lithuanian calendar
• Luba calendar

M

• Malayalam calendar
• Mandaean calendar
• Melanau calendar
• Mesoamerican Long Count calendar
• More veneto
• Muisca calendar

N

• Nanakshahi calendar
• Nepal Sambat

O

• Oxford Almanack

P

• Pambu Panchangam
• Pawukon calendar
• Pax Calendar
• Polemius Silvius
• Positivist calendar
• Pre-Islamic Arabian calendar
• Proleptic Gregorian calendar
• Proleptic Julian calendar

R

• Rapa Nui calendar
• Runic calendar

S

• Xuanming calendar
• Shona calendar
• Solar Hijri calendar
• Somali calendar
• Sotho calendar
• Stardate
• Symmetry454

T

• Tabarian calendar
• Taien calendar
• Tenpō calendar
• Thai lunar calendar
• Thai solar calendar
• Tibetan calendar
• Tōnalpōhualli
• Traditional Chinese timekeeping
• Tripuri calendar
• Tulu calendar
• Tzolkʼin

V

• Vākyapañcāṅga
• Vietnamese calendar
• Vikram Samvat

W

• World Calendar

X

• Xhosa calendar

Y

• Yoruba calendar

Z

• Zoroastrian calendar
• Zulu calendar