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Date Converter for Ancient Egypt

This website is a scientific tool for converting calendar dates mentioned in Greek and Demotic Papyri from Egypt into Julian and corresponding Gregorian dates, from the reign of Psametik to Diocletian.

Choose one of the historical periods (Late Period, Ptolemaic Kings, Macedonian Calendar or Roman Emperors), then the reign, year, month and (optionally) day and click on convert - the result date will be shown.

All calculations are based on the tables in Skeat, Reigns of the Ptolemies (1969), Pestman, Chronologie égyptienne d'après les textes démotiques (1967), Pestman, Les papyrus démotiques de Tsenhor (1994) and Grzybek, Du calendrier macédonien au calendrier ptolémaique (1990).