Best Julian Day Apps &amp; Games

4.7(117 ratings)

$0.99

Easily convert dates between the Gregorian calendar and the Julian Day of Year (ordinal date). This tool is useful for systems that use day-of-year numbering, such as mainframes, military, and food industries. It offers a clean interface, monthly views, and widgets for quick access.

Julian - Quick Dates by Juan Carlos Perez

Julian dates at a glance

Strong Contender

Date Converter, Day Calculator

4.8😊(4.7K ratings)

FreeIn-App Purchases

This app provides a quick and efficient way to view and convert between 11 different types of dates, including standard Julian dates, Mars Sol dates, and Unix time. It features a calendar for easy navigation and allows copying dates to the clipboard. The current date can be displayed on the app icon and Apple Watch complications.

What We Love

🚀 Excellent for work/professional use
👍 Simple and easy to use
👍 Helpful for daily tasks
👍 Convenient complication on Apple Watch

Room to Improve

🐛 Complication issues on Apple Watch (not updating, getting stuck)
🐛 Date discrepancies between app and complication
🐛 App not functioning properly after updates

Julian Date by Jevon Charles

Worth Considering

📊 Productivity

4.8😊(2.7K ratings)

FreeIn-App Purchases

Convert between standard calendar dates and Julian dates. Supports 5-digit and full Julian date formats, including time. Also allows conversion from Julian dates back to calendar dates.

What We Love

🚀 Best Julian Date App
👍 Great
👍 Love this APP
👍 Military
👍 wonderful
👍 Great
👍 Nice
👍 Aviation Taught Me Julian
👍 Simple but reliable
👍 Simple an accurate
👍 Works great
👍 Review
👍 Exactly what you need to be effective.
👍 Does
👍 Great Julian Date app!!
👍 Julian Date App
👍 It's simple and it works.
👍 Love this app
👍 Julian app is great for Oracle's JD Edwards EnterpriseOne ERP files
👍 Works great in govt application
👍 Perfect for Julian Date
👍 Works Perfectly As Described
👍 IMDS users, get this app!
👍 Runs as advertised
👍 Nice, comes in handy
👍 5 Stars
👍 Best tool in my check list pouch
👍 Number one
👍 Great app
👍 Awesome

Room to Improve

🤔 Could be improved
🤔 Good but...
🤔 Good app
🤔 Need to make it so you can use on i-watch
🤔 Just an idea
🤔 Trying to sneakily get money
🤔 They charge you
🤔 Not working correctly now.

More Julian Day apps to explore

JulianCal

Julian Day & Batch Codes

$1.99

View various Julian Calendar dates, including short, long, and reduced Julian Dates. Supports Lock Screen and Home Screen widgets for easy access to date conversions and calculations.

View Short Julian Calendar DateView Long Julian Calendar DateView Julian Date

This utility app converts between Julian and Gregorian dates and tracks Julian Day Numbers. It's designed for users in fields like astronomy, military operations, and historical research who need precise date management for daily operations.

Julian to Gregorian date conversionGregorian to Julian date conversionJulian Day Number tracking

Military Date & Zulu Time

$0.99

This utility app displays the current Julian Date, time with seconds, military date format, day of the week, and Zulu time (GMT). It's designed for quick access to essential timekeeping information.

Julian Date displayReal-time clock with secondsMilitary date format

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Sky Time

by John Kennedy

Displays local, Julian, Local Sidereal, and Universal TimeCalculates Sidereal Time using device locationNight-vision friendly red display

This app provides essential astronomy-related time data, including Julian Date, Universal Time, and Sidereal Time calculated using your device's location. It features a night-vision friendly red display and pop-up descriptions for easy understanding.

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Orthodox Calendar: Name Days

Daily Saints & Feast Days

Daily saints and feast daysJulian and Revised Julian calendar supportName day matching with contacts

Access daily saints and feast days according to both Julian and Revised Julian calendars. Discover who is celebrating a name day by matching your contacts to the saint of the day, with privacy-focused contact access.

🌟 Lifestyle

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Moon Phase Calendar LunarSight

Full Lunar Cycle, Widget, Sign

Moon phase renderingRise & Set timesEphemeris generation

Track the moon's journey with detailed phase information, rise and set times, and astrological insights. Access historical and future data for any date and location, with customizable widgets and notifications for key lunar events.

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(705)

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RollUp - Track Office Days

Office attendance, Simplified.

Track office days in one placeForecast future attendanceSpot attendance trends

This app helps employees easily track and manage their in-office days. It allows for forecasting attendance, spotting trends, and ensuring compliance with company policies. The interface is designed to be clear and effortless, promoting accountability and productivity.

📊 Productivity

(0)

Pulsebit: Heart Rate Monitor

Pulse: HRV & Stress Tracker

Measure pulse and HRV without extra devicesDaily mood and thought diaryAnalyze body's response to lifestyle

This app helps you understand your body's stress response by tracking your heart rate and HRV using your phone's camera. Log your mood and receive personalized wellness advice to build healthier habits.

💪 Health & Fitness

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Calendar : 4500 BC to 4500 AD

Calculate the day of the week

$1.99

This app calculates the day of the week for any date between 4500 BC and 4500 AD. It also displays moon phases and planet positions, with features available in 30 languages. Includes Julian Date, Islamic, Chinese, and Korean calendars.

Day of the week calculationMoon phases and planet positionsJulian Date conversion

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(2)

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24 Hour Clock App & Widget

Instant 12/24 hour conversionLocal time displayTime zone and UTC support

Easily convert between 12-hour (AM/PM) and 24-hour military time. This app offers instant conversions, local time display, time zone support, and convenient widgets. Learn and practice military time with a built-in chart.

(312)

LSTclock: sidereal time clock

Local sidereal time clock

Local sidereal time displayJulian Date calculationSupports multiple registered locations

This utility app displays local sidereal time for registered locations on iOS, iPadOS, and watchOS. It can also calculate sidereal time and Julian Date for any date and time, and sync locations between devices.

GPS and UTC Time converter

GPS Time to UTC conversionSupport for leap secondsMultiple time format support

This tool converts between GPS Time and UTC, supporting various formats like GPS Week, Gregorian calendar, and Modified Julian Date. It accurately handles leap seconds and saves conversion history for GNSS professionals, researchers, and students.

(1)

Date Converter: Calendars

Convert dates across calendars

Convert between Gregorian, Islamic, Coptic, Um Al Qura, Hebrew, and Solar Hijri calendarsAuthentic month names for each calendar systemIntuitive, modern Material Design 3 interface

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