# Julian Clock — Military Date & Zulu Time

> Julian Date and Clock utility with Zulu time display. (iPhone/iPad app by Adam Allard.)

- Source: https://appshunter.io/ios/app/julian-clock/id959214765 (this page in markdown: same URL + `.md`)
- Developer: [Adam Allard](https://appshunter.io/developer/959214764)
- Category: Utilities, Reference
- Price: $0.99
- Rating: 4.90/5 from 15 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English
- Released: 2015-01-28
- Data updated: 2026-08-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/julian-clock/id959214765/reviews.md

## What is Julian Clock?

It's as simple as it gets, a Julian date and clock app built for people who need the numbers fast.

Julian Clock shows everything you need at a glance:

• Julian date (YJJJ or YYDDD, your choice in Settings)
• Local time with running seconds
• Date in military format (e.g. 19JUN26)
• Day of the week
• Zulu time (GMT)

New in version 2

• Home Screen widgets — small and medium layouts with Julian date, Zulu, and military date
• Lock Screen widgets — circular, rectangular, and inline at-a-glance views
• Apple Watch app — Julian date and Zulu on your wrist, plus complications
• iPad support — universal layout for desk and EFB use
• Historical lookup — pick any date on the calendar to get its Julian day
• Eight themes — Navy, Air Force, Army, Marines, Coast Guard, Space Force, Dark, and Light

Widgets and the Watch app stay in sync with your format and theme choices.

This app is for military and DOD personnel who constantly need a quick look at the Julian date and/or Zulu time, on the phone, on the lock screen, on the watch, or on an iPad beside the job.

## Key features

- Julian Date display
- Real-time clock with seconds
- Military date format
- Day of the week
- ZULU time (GMT)

## Chart rankings

- #131 in Top Paid · Utilities (US App Store)

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/julian-clock/id959214765/reviews.md

### 5/5 — Must have

*2025-01-14*

Overall: 10/10
This app is great for anyone who needs the Julian date or time, even down to the second. I use this app all the time for my job. It’s simple, user friendly, and has been reliable every time. Definitely worth spending the small price you pay for a world of ease. 

Only thing that would make this app better would be to add a widget so personnel can add it to their Lock Screen or Home Screen instead of having to open the app every time you need it.

**Developer response:** Thank you so much for the kind words and for being a loyal user, reviews like this mean a lot! Great news: a widget for the Lock Screen and Home Screen is exactly what we're working on for the next update. Stay tuned, it's coming soon!

### 5/5 — Excellent

*2023-02-10*

Worked great when I was in the military, and private sector when I needed the Julian Date.

### 5/5 — Perfect !

*2021-10-15*

It's a great simple app that provides the information I need.

### 5/5 — Great

*2020-09-14*

This is perfect and Simple. 
I agree with the other reviews, a widget for the lock screen would be great.

**Developer response:** Thank you for the feedback! A Lock Screen and Home Screen widget is on the roadmap for the next update, stay tuned!

### 4/5 — Apple Watch

*2019-11-19*

Would be perfect if Julian date displayed on Apple Watch. Kevlikev

### 5/5 — Excellent 4 digit Julian Date display

*2019-05-22, version 1.0.1*

Simple design. Fully functional as presented. Useful addition would be a widget for immediate access/display from the locked screen. TNX!

### 5/5 — Great clock

*2018-12-19*

We use current Julian’s for day coding would be perfect if you could access a calendar to generate past Julian’s when looking at older dates, so really good but probably won’t be able to use for work

### 5/5 — Perfect!

*2016-05-26*

This app does what it's supposed to. No troubles at all. Very fast and convenient.

**Developer response:** Thank you! I strive to make things simple ;)

### 5/5 — Perfect!

*2016-02-03*

I was originally looking for an app that displayed the current Julian day on the app icon like the regular calendar, but was having no luck. This one works great and quickly opens to show all the Julian day information and is in military format which is great. It updates daily without having to select anything.

**Developer response:** Thank you! Unfortunately Apple doesn't allow independent app developers to have dynamic icons like Apple Clock icon, so I have to settle for creating a fast and simple display screen instead :)

### 5/5 — Must have for military pilots!

*2015-12-07*

Super convenient! Must have for all military pilots! Wish there was an iPad version for the EFBs!!

**Developer response:** Thank you Sir for the awesome review and even more for your military service! Luckily the iPads do still allow you to download iPhone apps, but I will work on a new version built specifically for iPads as well!

## Frequently asked questions about Julian Clock

### What is the Julian Clock app?

Julian Clock is a utility application that provides a quick view of the Julian Date, current time with seconds, military date format, day of the week, and Zulu time (GMT).

### Who is the Julian Clock app designed for?

This app is specifically targeted towards military and DOD personnel who frequently need to reference the Julian Date and Zulu time.

### What devices does Julian Clock support?

Julian Clock is available for iPhone and iPod devices.

### How much does Julian Clock cost?

Julian Clock is a paid application, priced at $0.99.

### What is the age rating for Julian Clock?

Julian Clock has an age rating of 4+, making it suitable for a wide range of users.

### When was Julian Clock last updated?

Julian Clock was last updated on February 16, 2015, with version 1.0.1.

### Does Julian Clock have ads?

No, Julian Clock does not contain advertisements.

### What is the user rating for Julian Clock?

Julian Clock has received an excellent rating of 4.9 stars based on 15 user reviews.

## Version history (last 3 releases)

### 2.0 — 2026-06-19

• Home Screen widgets — small and medium layouts with Julian date, Zulu, and military date
• Lock Screen widgets — circular, rectangular, and inline at-a-glance views
• Apple Watch app — Julian date and Zulu on your wrist, plus complications
• iPad support — universal layout for desk and EFB use
• Historical lookup — pick any date on the calendar to get its Julian day
• Eight themes — Navy, Air Force, Army, Marines, Coast Guard, Space Force, Dark, and Light

Widgets and the Watch app stay in sync with your format and theme choices.

### 1.0.1 — 2015-02-16

This app has been updated by Apple to display the Apple Watch app icon.

* Updated the Julian Date to display proper day of the year
* Now available for older iOS versions (iOS 6.0 and up)

### 1.0 — 2015-01-26

No release notes.

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| --- | --- | --- | --- |
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| [Interpolator](https://appshunter.io/ios/app/interpolator/id635235982) | 4.9 (74) | Free | Utilities |
| [Zulu Time](https://appshunter.io/ios/app/zulu-time/id377289826) | 4.8 (2,585) | $0.99 | Utilities |
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## Related topics

[julian clock](https://appshunter.io/ios/topics/julian-clock) · [julian date](https://appshunter.io/ios/topics/julian-date) · [julien date](https://appshunter.io/ios/topics/julien-date) · [julian date converter](https://appshunter.io/ios/topics/julian-date-converter) · [iconvert military time](https://appshunter.io/ios/topics/iconvert-military-time)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*