Zoroastrian Calendar is also commonly known as The Zarathushtrian Calendar. Ancient Zoroastrians observed a 360 days Calendar of 12 months with each month comprising of 30 days. The months were named after seasonal festivals but the days of each month were merely numbered from one to thirty. In the middle of the fifth century BCE, during theAchaemenian era, a distinctive 360 days Calendar was created. Each day (Roj) of the twelve months was assigned. However, the Egyptians of that era had a Calendar based upon a 365 days solar cycle. In 46 CE the Romans adopted the Egyptian Calendar but the Persians kept on following the 360 days Calendar until the middle of the third century CE.
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