Calendar family
Religious & Cultural
The living calendars of faith and custom — lunar, solar and lunisolar, most of them counting years from a founding moment.
12 calendars
Baháʼí (Badíʿ)
19 months of 19 days · from Naw-Rúz (approx.)
Chinese
Lunisolar · zodiac rolls at Lunar New Year
Coptic
Calendar of the Egyptian church
Ethiopian
Ge'ez calendar · ~7–8 years behind
Hebrew
Lunisolar · in use since antiquity
Indian National (Saka)
India's official civil calendar
Islamic (Hijri)
Purely lunar · Umm al-Qura
Korean (Dangi)
Lunisolar · years counted from Dangun, 2333 BCE
Persian (Solar Hijri)
Solar · new year at the spring equinox
Thai Buddhist
Thailand's civil calendar · years from the Buddha's passing
Thai Lunar (Suriyayart)
Sets Vesak and the uposatha days · arithmetic, not observed
Vikram Samvat
Bikram Sambat · official in Nepal, counted from 57 BCE