---
title: "Julianator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "This app converts a date between Julian Day of Year and Gregorian.  For example, September 11, 2022 converts to 2022-254 and 2022-254 converts to September 11, 2022.  This app will convert both direct"
---

# Julianator — United States
> Julian Day of Year Calculator

![Julianator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/44/d6/10/44d6106d-df2e-5a9e-f9ba-2666a98878d8/Julianator_icon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Bright Day Digital](https://apptail.io/developer/bright-day-digital-Qlxc)
**Category:** Utilities
**Rating:** 4.7/5 (124 ratings)
**Price:** $0.99
**Bundle ID:** com.toddbrenneman.julianator
**Store:** Apple App Store
**Country:** United States
**Version:** 4.7 (released 2025-09-18)
**Original Release:** 2010-07-30
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id383950353)
**AppTail Page:** [https://apptail.io/app/julianator-VNNb/united-states](https://apptail.io/app/julianator-VNNb/united-states)

## Julianator Description
This app converts a date between Julian Day of Year and Gregorian.  For example, September 11, 2022 converts to 2022-254 and 2022-254 converts to September 11, 2022.

This app will convert both directions.

Julian Date for this app refers to the day-of-year number (more properly, the ordinal date) in the Gregorian calendar, often used in mainframe computer systems, the military, and the food industry. (Note: this app does not used the term Julian Date to refer to the astronomy definition which is calculated from 4713 BC)

Features a simple clean interface with pickers for the dates.

The app also features a monthly view allowing a quick view of both Gregorian and Julian days for the entire month.

Widgets are available for both the Home Screen and the Lock Screen to display the current day of year.

A Watch app is available that includes a date converter and complications to display the current day of year.

Note:  The app's icon does not change to reflect the current day.

Privacy Policy:  
Terms of Service:  

## Julianator Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/15/58/3f/15583f56-5484-0724-2467-5eea57f1e827/iOS_Phones__6.5-01.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/14/52/b7/1452b773-17c4-ef4e-6dd7-1a70da3ac81a/iOS_Phones__6.5-02.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/29/93/80/29938070-4067-1c64-c5af-f780c5203022/iOS_Phones__6.5-03.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/90/98/cd/9098cd53-1b0b-2857-e1c0-45ed24dcfc1a/iOS_Phones__6.5-04.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8f/a5/66/8fa5669b-e032-162d-ca96-070393c443f7/iOS_Phones__6.5-05.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8a/a8/4b/8aa84b1e-bcf4-056b-637f-987c1facb714/iOS_Phones__6.5-06.png/1242x2688.png)

## Julianator Rating Breakdown in United States
- 5 stars: 107 (86%)
- 4 stars: 10 (8%)
- 3 stars: 0 (0%)
- 2 stars: 4 (3%)
- 1 stars: 3 (2%)

## Julianator Reviews in United States

### **--- "Widget doesn’t work"
The lock screen widget doesn’t work. The current Julian date should display in the icon without having to open app.
-- FiveftGiant, 2024-10-23

### *---- "Fix widget"
Is there a way to fix the widget. I want the see the actual Julian date with out clicking the widget. The widget displays “2024-2..”
-- slickp35, 2024-09-18

### *---- "No complications"
Does not show in the list of available complications.  That’s what I wanted for.
-- TimTimpani, 2023-01-23

### ***** "Awesome!"
I’m retired military, and work for the government as a civil servant. I use the Julian date daily, as many in the government do. I love this app! The fact that it has a watch complication and a iPhone widget, makes it absolutely perfect in my opinion.
-- CPUSAF, 2022-10-28

### ***** "The best"
Amazing app, appreciate its simplicity. Use it in the aerospace industry all the time. Thanks to the developer for keeping it going all these years!
-- lefblank, 2022-09-24

### ****- "Needs to Display Date on Icon"
This app would get five stars if it displayed the Julian date on the app’s homescreen icon.
-- W!CKETEER, 2021-03-02

### ***** "Perfect for work"
I deal with Julian dates all the time at work and this is the perfect app for it. You can search by Julian date or search by regular date and it just makes life simple. Thank you.
-- Mind Astray, 2019-06-08

### ***** "Perfect!!"
Simple, quick, and exactly what I needed to project and plan events a certain amount of days out within the year. No frills I don’t need, no nag screens or ads, and with perfect displays. A big thanks the creator(s).
-- WindChaser78, 2019-06-08

### ***** "Nice and smooth update!"
Nice and simple julian date converter and calendar to browse. Very smooth date selector and slide to calendar!
-- Tdtd1970, 2017-11-18

### ***** "Nifty and handy"
Simple to use.  Does exactly what is needed, and does it well.
-- goldenruby, 2017-01-19

[View all Julianator reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## Julianator Discovered Keywords
- julianator

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## Julianator Available In
- [United States](https://apptail.io/app/julianator-VNNb/united-states)
- [Canada](https://apptail.io/app/julianator-VNNb/canada)
- [Australia](https://apptail.io/app/julianator-VNNb/australia)
- [United Kingdom](https://apptail.io/app/julianator-VNNb/united-kingdom)
- [Mexico](https://apptail.io/app/julianator-VNNb/mexico)
- [Netherlands](https://apptail.io/app/julianator-VNNb/netherlands)
- [Bahrain](https://apptail.io/app/julianator-VNNb/bahrain)
- [New Zealand](https://apptail.io/app/julianator-VNNb/new-zealand)
- [Italy](https://apptail.io/app/julianator-VNNb/italy)
- [Japan](https://apptail.io/app/julianator-VNNb/japan)
- [Colombia](https://apptail.io/app/julianator-VNNb/colombia)
- [Czechia](https://apptail.io/app/julianator-VNNb/czechia)
- [Germany](https://apptail.io/app/julianator-VNNb/germany)
- [Denmark](https://apptail.io/app/julianator-VNNb/denmark)
- [Dominican Republic](https://apptail.io/app/julianator-VNNb/dominican-republic)
- [Algeria](https://apptail.io/app/julianator-VNNb/algeria)
- [Ecuador](https://apptail.io/app/julianator-VNNb/ecuador)
- [Estonia](https://apptail.io/app/julianator-VNNb/estonia)
- [Egypt](https://apptail.io/app/julianator-VNNb/egypt)
- [Spain](https://apptail.io/app/julianator-VNNb/spain)
- [Finland](https://apptail.io/app/julianator-VNNb/finland)
- [France](https://apptail.io/app/julianator-VNNb/france)
- [Greece](https://apptail.io/app/julianator-VNNb/greece)
- [Hong Kong SAR China](https://apptail.io/app/julianator-VNNb/hong-kong)
- [Hungary](https://apptail.io/app/julianator-VNNb/hungary)
- [Indonesia](https://apptail.io/app/julianator-VNNb/indonesia)
- [Ireland](https://apptail.io/app/julianator-VNNb/ireland)
- [Israel](https://apptail.io/app/julianator-VNNb/israel)
- [India](https://apptail.io/app/julianator-VNNb/india)
- [South Korea](https://apptail.io/app/julianator-VNNb/south-korea)
- [Kuwait](https://apptail.io/app/julianator-VNNb/kuwait)
- [Kazakhstan](https://apptail.io/app/julianator-VNNb/kazakhstan)
- [Lebanon](https://apptail.io/app/julianator-VNNb/lebanon)
- [Sri Lanka](https://apptail.io/app/julianator-VNNb/sri-lanka)
- [Lithuania](https://apptail.io/app/julianator-VNNb/lithuania)
- [Luxembourg](https://apptail.io/app/julianator-VNNb/luxembourg)
- [Malaysia](https://apptail.io/app/julianator-VNNb/malaysia)
- [Nigeria](https://apptail.io/app/julianator-VNNb/nigeria)
- [Norway](https://apptail.io/app/julianator-VNNb/norway)
- [Peru](https://apptail.io/app/julianator-VNNb/peru)
- [Philippines](https://apptail.io/app/julianator-VNNb/philippines)
- [Poland](https://apptail.io/app/julianator-VNNb/poland)
- [Portugal](https://apptail.io/app/julianator-VNNb/portugal)
- [Romania](https://apptail.io/app/julianator-VNNb/romania)
- [Saudi Arabia](https://apptail.io/app/julianator-VNNb/saudi-arabia)
- [Sweden](https://apptail.io/app/julianator-VNNb/sweden)
- [Singapore](https://apptail.io/app/julianator-VNNb/singapore)
- [Thailand](https://apptail.io/app/julianator-VNNb/thailand)
- [Türkiye](https://apptail.io/app/julianator-VNNb/turkey)
- [Taiwan](https://apptail.io/app/julianator-VNNb/taiwan)
- [Ukraine](https://apptail.io/app/julianator-VNNb/ukraine)
- [Vietnam](https://apptail.io/app/julianator-VNNb/vietnam)
- [United Arab Emirates](https://apptail.io/app/julianator-VNNb/united-arab-emirates)
- [South Africa](https://apptail.io/app/julianator-VNNb/south-africa)
- [Angola](https://apptail.io/app/julianator-VNNb/angola)
- [Argentina](https://apptail.io/app/julianator-VNNb/argentina)
- [Austria](https://apptail.io/app/julianator-VNNb/austria)
- [Azerbaijan](https://apptail.io/app/julianator-VNNb/azerbaijan)
- [Belgium](https://apptail.io/app/julianator-VNNb/belgium)
- [Brazil](https://apptail.io/app/julianator-VNNb/brazil)
- [Switzerland](https://apptail.io/app/julianator-VNNb/switzerland)
- [Chile](https://apptail.io/app/julianator-VNNb/chile)
- [China](https://apptail.io/app/julianator-VNNb/china)

---

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