Best Ancient Calendars Apps

Kemetic Calendar

The Sidereal Calendar

Free

Explore humanity's oldest calendar, based on the heliacal rising of Sirius. This app syncs with your phone, allows event scheduling, and educates on Divinities and Holy Days. Reconnect with ancient culture through astronomical accuracy.

Attic Calendar

Ancient Greek Calendar

Free

Explore the ancient Athenian calendar with this app. Track solstices, equinoxes, moon phases, and ancient Greek festivals. Features include customizable widgets for at-a-glance viewing and detailed calculation rules for historical accuracy.

Calendar App- Schedule Planner

Plan Your Day, Week & Life

Free

This app offers a simple yet powerful way to manage your schedule with intuitive design and robust features. It provides seamless syncing with popular calendar services and customizable notifications to keep you organized and stress-free.

Maya Calendar

by Edwin Barnhart

Free

Explore the ancient Maya calendar system. Convert between Maya and Gregorian dates, discover daily insights, and calculate personal Maya birthdays with associated personality traits and destiny. An offline resource for history enthusiasts and students.

Ancient slavic calendar

Ancient slavic calendar

Free

Explore the ancient Slavic calendar system, known as Krugolet. Understand its hexadecimal calculations, 16-year cycles, and the 144-year Circle of Life. Discover its historical context and how it differs from the modern calendar.

UniCal - Calendar Converter

Universal Calendar Converter

Free

Explore historical and cultural dates across numerous global calendars. Convert any date to Gregorian, Hebrew, Islamic, Chinese, Maya, and many more. Get daily alerts for celebrations and saints.

Almaniac: A Calendar Converter

Many calendars, one date

Free

See dates across multiple calendars simultaneously, including their native scripts and major holidays. Explore the history and usage of each calendar system. Customize your view with themes, modes, and widgets.

Roozegar - روزگار

Roozegar, Persian Calendar

Free

This app provides a comprehensive Persian (Jalali) calendar for iPhone, iPad, and Apple Watch. It includes date conversion tools and multiple widgets for easy access to your schedule. You can also log events directly into your system calendar.

Persian Calendar 2700

Persian Date & Event Tracker

Free

This app offers a professional and private calendar for Persian speakers, featuring accurate date conversion and tracking of historical events. It supports multiple calendar systems including Solar Hijri and Gregorian.

Tzolkin Explorer

by TLT Consulting

Free

Explore the ancient Tzolkin calendar, synchronized with the Gregorian calendar. This app allows you to track significant historical and future dates using this 3000-year-old Mayan system. Discover interesting temporal connections with an intuitive interface.

Date Converter: Calendars

Convert dates across calendars

Free

Easily convert dates between various calendar systems like Gregorian, Islamic, Coptic, and Hebrew. Features authentic month names and a modern, customizable interface for researchers, historians, and religious observers.

Cyrus Calendar

تقویم شاهنشاهی کوروش کبیر

Free

This app offers a calendar rooted in ancient Persian history, starting from the reign of Cyrus the Great. It emphasizes national identity and cultural heritage, aligning with the scientific accuracy of the Jalali calendar.

Mayan Calendar

by Quadrivium Projects

Free

Explore the ancient Mayan calendar system, including Long Count, Haab, and Tzolkin dates. View dates in both Maya and English, with unique illustrations to discover.

12 Signs — Zodiac Calendar

Plan your days with astrology

Free

Plan your life in sync with celestial events. This app provides detailed astrological data, including transits, eclipses, and retrogrades, with notifications and calendar integration. Discover a unique astrological perspective on time.