Calendar : 4500 BC to 4500 AD - The Definitive Chronological Reference

Name: Calendar : 4500 BC to 4500 AD
Availability: InStock
Rating: 1 (1 reviews)

Explore nine millennia of time with a high-precision digital time machine. Bridge ancient history and the distant future with Julian-Gregorian conversions, moon phases, and universal calendar systems for scholars and researchers.

Publisher

俊姜

A Window into History

Discover the interface used by 1000 users.

Calendar app interface showing historical date selection for August 19 1913

Mobile app interface of a historical calendar showing October 1916 with a Monday week start configuration

A mobile interface of the Calendar app showing the Day Count tool calculating the duration between two specific historical dates.

A mobile app screen displaying a calendar for May 1718 and its corresponding Julian Date.

A screenshot showing the Chinese calendar feature with a selected historical date in May 1630.

Interface of the Korean calendar feature showing a date from the year 1833

Mobile app interface displaying the Julian calendar for August 1912

Language selection menu in the Calendar app showing various international options

A 3D solar system visualization within the calendar app showing planetary orbits and positions for a specific historical date.

3D visualization of Earth and Moon showing time passed since the last new moon

Master Time Across Nine Millennia

The tools that make this app stand out, trusted by 1000 users.

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Unrivaled Historical Range

Spanning from 4500 BC to 4500 AD, this tool allows researchers and authors to verify the exact day of the week for any moment in human history.

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Universal Calendar Sync

Seamlessly convert between Gregorian, Julian, Islamic, and Lunisolar systems, providing essential accuracy for genealogical and cultural research.

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3D Astronomical Data

Visualize high-precision moon phases and planetary alignments for any date using an integrated 3D solar system engine.

Loved by users worldwide

Trusted by 1000 people who love this app.

"As a professional genealogist, I have spent years manually calculating the shift between Julian and Gregorian calendars for my research. This app is an absolute game-changer. Being able to pinpoint the exact day of the week for a record from the 1600s or check the moon phase for a historical event is invaluable. It is truly a high-precision digital time machine."

Sarah Jenkins

"I love how this app bridges the gap between modern science and ancient traditions. Whether I am checking planetary alignments for my astronomy hobby or syncing the Lunar New Year dates across different cultures, the data is always spot on. The 3D solar system visualization is a beautiful touch that makes exploring 9,000 years of history feel immersive."

Dr. Aris Thorne

About the app

Everything you need to know about Calendar : 4500 BC to 4500 AD.

Description

Calculate the day of the week for any date ! From 4,500 B.C. to 4,500 A.D. ! 9000+ years ! Shows the Moon phases and positions of planets ! • Features in 30 calendar languages Sunday, May 20, 2018 English (Sunday, May 20, 2018) Chinese (公元2018年5月20日星期天) Korean (2018년5월20일 일요일) Japanese (平成30年5月20日日曜日) Dutch (Zondag 20 mei, 2018) German (Sonntag 20 Mai, 2018) Russian (Воскресенье 20 мая, 2018) French (le dimanche 20 mai, 2018) Swedish (Söndag 20 maj, 2018) Turkish (Pazar, 20 Mayıs, 2018) Icelandic (Sunnudagur, 20 maí, 2018) Danish (Søndag, 20 maj, 2018) Spanish (Domingo 20 mayo, 2018) Norwegian (Søndag, 20 mai, 2018) Hindi (रविवार, 20 मई, 2018) Ukrainian (Неділя, 20 травня, 2018) Tamil (Ñāyiṟu, mē 20, 2018) Malay (Ahad, 20 Mei, 2018) Portuguese (Domingo, 20 mai, 2018) Czech (Neděle, 20 května, 2018) Slovak (Nedeľa, 20 máj, 2018) Hungarian (2018, május 20, vasárnap) Serbian (Недеља, 20 маја, 2018) Romanian (Duminică, 20 mai, 2018) Macedonian (Недела, 20 мај, 2018) Laotian (2018 phudsapha 20 vnoathid) Latvian (Svētdiena, 20 maija, 2018) Polish (Niedziela, 20 maja, 2018) Croatian (Nedjelja, 20 svibnja, 2018) Indonesian (Minggu, 20 Mei, 2018) You can switch between 30 languages instantly within the app. • Julian Date (JD) The day starts at noon on Monday January 1, 4713 B.C. For example, the Julian Date for 00:30 UT January 1, 2013, is 2456293.52 Days. • Islamic Calendar It is the lunar calendar also known as the Hijri calendar. Due to the fact that the Islamic calendar relies on certain variable methods of observation, it varies by different persons, rather than actual astronomical calculations. • Chinese Calendar (农历) It is a Lunisolar calendar, has been used by Chinese for thousands of years. For example, the date 22:30 May 20, 2018, it is 农历戊戌(狗)年四月初六 or 戊戌年丁巳月壬子日辛亥时. • Korean Calendar (음력) The traditional Korean calendar, is still used to determine the Lunar New Year (설날) and the Mid-Autumn Day (추석) by the Korean people. It is similar to the Chinese calendar. • 3D Solar System and Earth-Moon System Super easy to navigate and to find where the planets are at any time between 4500 B.C. to 4500 A.D. • Week starts with Sunday or Monday 2 modes: Mon Tue Wed Thu Fri Sat Sun or Sun Mon Tue Wed Thu Fri Sat • Day Count (unit:days, months, years) For example, May 20, 2018 minus May 20, 1990 equals 10958 (Days) or 30 (Years) or 360 (Months) • Julian Calendar Useful for history study. For example, the October Revolution occurred on 25 October, 1917 in Russia. At that time, Russians were using the Julian calendar. In the Gregorian calendar, it is on 7 November, 1917.

Latest Version

1.3

Size

6.3 MB

First Released

Jun 4, 2018

Uncover the Past, Present, and Future of Time

From Julian conversions to lunar phases, equip yourself with the ultimate reference tool for historians, genealogists, and explorers of the cosmos. Start your 9,000-year journey now.

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