Gregorian

Old (Julian) Calendar

Spring Equinox

Summer Solstice

Fall Equinox

Winter Solstice

Orthodox Easter

Catholic Easter

Julian Day Number

GRE

JUL

SPE

SUS

FAE

WIS

NMA

NMH

JDN


Ancient Attic

Roman date

Byzantine (Annus Mundi) - Indiction

Hebrew (Anno Mundi)

Hijri

Coptic date (Anno Martyri/ Diocletiani)

Ethiopian date (Year of Mercy/ Amätä Məhrät)

ATT

RD

AM

HEB

HIJ

COP

ETH


Persian

Afghan/Pastu

Kurdish

Armenian

Baha'i

PER

AFG

KUR

ARM

BAH


Indian Civil

Hindu Traditional

Chinese

Japanese

Mayan

HIN

HINT

CHI

JAP

MAY