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Julian - Quick Dates

Julian - Quick Dates

Julian dates at a glance

4.8K ratings
84 reviews
🔧 Utilities
📊 Productivity
Free
In-App Purchases

Details

Released
April 2, 2016
Updated
October 3, 2026

Features

Developer

Juan Carlos Perez
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Julian - Quick Dates screenshot #1 for iPhone
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watch
🧾$0.99 - $2.99
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❓5 answered
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About

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.

✓11 date type conversions
✓Calendar view
✓Copy to clipboard
✓App icon badge display
✓Apple Watch complications
Show original description

What users say about Julian

Reviews of Julian are mostly positive: the Utilities app is rated 4.8/5 from 4.8K App Store ratings. What users like most: excellent for work/professional use, simple and easy to use. Top complaints: complication issues on Apple Watch (not updating, getting stuck), date discrepancies between app and complication. Summarized from real user reviews.

Positive things

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

Negative things

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

What's New in Julian

2026.2

October 3, 2026

- Enjoy improved layouts when resizing windows, clearer controls at large text sizes, and better Reduce Motion support. - Share a personalized image of today's date and year progress. - Use the International Fixed Calendar, with 13 months of 28 days, across Julian, widgets, and Apple Watch. - This update also improves Today refresh, date and time-zone consistency, and Apple Watch complications.

More
3

Subscriptions & In-App Purchases

$0.99

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User reviews

Most RecentHighest RatedLowest Rated

Excellent for many date formats

The latest release, 2026.1, adds so much more to this app than the title suggests. If you need alternate date formats - ISO, Julian, ordinal, and others - this is the app for you. (I use ISO 8601 and week formats regularly.). Developers, include the IFC, International Fixed Calendar, to a future update and you’ll have everything covered!
———
Edit: release 2026.2 now includes the IFC, International Fixed Calendar! 💯 👊💥
Thank you!
Show more
RRDLGSTX

[_-[tightening][the ropes].]

[review on the Schwab rise], [[hadn’t found a better app than Charles Schwab].]
[S[_-[For more stars.]

WatchOS 27 broke the display

This app is the main reason that I wear my watch at work. I use Julian’s everyday. After the update, the actual date does not display when it’s in a complication on the watch. Please fix.
GGGreat game so great!

Helpful!

Really helpful for tracking goal progress against passage of the year. I wish it would auto refresh every time it opened. Ex: if you opened the app yesterday and click it again today without force-closing, it will show still have yesterday highlighted as today.
GGremlin4308

App idea

Consider live julian date on app icon so it is quickly visible. Like the apple clock, you can see without opening app. Icon shows 330 jd.
RKReviewer KD
See 79 more reviews

User experience

🐞

Reported Bugs

3 issues

Complication not updating correctly on Apple Watch

Bug

Date displayed incorrectly, one day behind

Bug

App not functioning properly after updates

Bug
✨

Requested Features

4 requests

Display current date along with Julian date

Feature

Add countdown/days remaining functionality

Feature

Display week number

Feature

Show Julian date on app icon

Feature

FAQ

What does Julian do?

Julian is a utility app that allows you to view and convert between 11 different types of dates. These include various Julian date formats, Mars Sol Date, Rata Die, and Unix Time. It also offers a calendar for easy date navigation and the ability to copy dates to your clipboard.

What are the key features of Julian?

Key features include support for 11 distinct date types, a calendar for browsing dates, one-tap copying of dates to the clipboard, displaying the current date on the app icon via the badge number, and Apple Watch complications for at-a-glance date viewing.

Is Julian free to use?

The app is free to download and use, with in-app purchases available. This suggests that while core functionality is accessible, some advanced features or customization options might require a purchase.

What devices is Julian compatible with?

Based on the description mentioning Apple Watch complications and app icon badges, Julian is designed for Apple devices, likely including iPhones, iPads, and Apple Watches running compatible versions of iOS and watchOS.

Who would benefit from using Julian?

This app is ideal for astronomers, scientists, developers, or anyone who regularly needs to work with or convert between different date systems like Julian dates, Modified Julian Dates, or Unix Time. Its calendar and clipboard features also make it useful for general date management.