Do you want to congratulate your friends with the new year on Jewish or Islamic calendar? Do you want to know day of week of the day you were born? What the difference between world creation dates in Hebrew calendar, Hijri date in Muslim or Christ birthday in Gregorian and Julian? It's easy! Our calendar converter converts any date on supported calendar in each other. Supported calendars are: 1. Gregorian calendar 2. Julian calendar 3. Hebrew(Jewish) calendar 4. Islamic(Muslim) calendar 5. Indian Civil calendar 6. Persian (Iranian) calendar 7. Mayan calendar 8. Bahai calendar 9. Coptic calendar 10. Old russian calendar (byzantian system) Choose source calendar, set the date and look at this date in other calendars. Also you will see additional information as day of week and type of the year.