| Namespace | Identifier | Authority | Name | Label | Description | Constants |
|---|---|---|---|---|---|---|
| calendar | Akan | okapia.net | Akan Calendar | Akan | ||
| calendar | Bahai | okapia.net | Bahá'í Calendar | |||
| calendar | Bengali | okapia.net | Bengali Calendar | |||
| calendar | Berber | okapia.net | Berber Calendar | |||
| calendar | Buddhist | okapia.net | Buddhist Calendar | |||
| calendar | Chinese | okapia.net | Chinese Calendar | |||
| calendar | Coptic | okapia.net | Coptic Calendar | |||
| calendar | Discordian | okapia.net | Discordian Calendar | |||
| calendar | Ethiopian | okapia.net | Ethiopian Calendar | |||
| calendar | Gregorian | okapia.net | Gregorian Calendar | |||
| calendar | Hebrew | okapia.net | Hebrew Calendar | |||
| calendar | Hellenic | okapia.net | Hellenic Calendar | |||
| calendar | Igbo | okapia.net | Igbo Calendar | |||
| calendar | Indian | okapia.net | Indian National Calendar | |||
| calendar | ISO8601 | okapia.net | ISO 8601 Calendar | |||
| calendar | ISOWeekdate | okapia.net | ISO Week Date Calendar | |||
| calendar | Islamic | okapia.net | Islamic Calendar |
...
| calendar |
Islamic Calendar
...
| Japanese | okapia.net | Japanese Calendar | |||
| calendar |
...
| Javanese | okapia.net | Javanese Calendar |
...
| calendar | Juche | okapia.net | Juche Era Calendar | |||
| calendar |
...
| Jualian | okapia.net | Jualian Calendar |
...
| calendar | Kurdish | okapia.net | Kurdish Calendar | |||
| calendar |
...
| Malayalam | okapia.net | Malayalam Calendar | ||||
| calendar |
...
| Nanakshahi | okapia.net | Nanakshahi Calendar |
...
| calendar | Nanakshahi | okapia.net |
Nepali Calendar
...
| Nanakshahi Calendar | ||||
| calendar | NepalSambat | okapia.net | Nepal Sambat Calendar |
...
| calendar | RevisedJulian | okapia.net | Revised Julian Calendar |
...
| calendar | Romanian | okapia.net | Romanian Calendar | |||
| calendar |
...
| Rumi | okapia.net | Rumi Calendar |
...
| calendar | Runic | okapia.net | Runic Calendar | |||
| calendar |
...
| Tamil | okapia.net | Tamil Calendar |
...
| calendar | ThaiLunar | okapia.net | Thai Lunar Calendar |
calendar:ThaiLunar@okapia.net
Thai Solar Calendar
...
| calendar | Tibetan | okapia.net | Tibetan Calendar | |||
| calendar |
...
Zoroastrian Calendar
...
| Xhosa | okapia.net | Xhosa Calendar |
...
| calendar | Yoruba | okapia.net | Yoruba Calendar | |||
| calendar |
...
| Zoroastrian | okapia.net | Zoroastrian Calendar |