---
title: "Sky Time - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Sky Time is a simple app that displays Astronomy related times, including Julian Date and Universal Time. It also makes use of your device's ability to sense location to determine the Sidereal Time.  "
---

# Sky Time — United States

![Sky Time App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/ed/72/c0/ed72c036-f2db-d31a-2ae8-1127b6b4f68e/mzl.vbxbyitn.png/434x0w.png)

**Developer:** [John Kennedy](https://apptail.io/developer/john-kennedy-Fvrb)
**Category:** Reference
**Rating:** 4.2/5 (17 ratings)
**Price:** Free
**Bundle ID:** com.craicdesign.skytime
**Store:** Apple App Store
**Country:** United States
**Version:** 1.4 (released 2016-12-19)
**Original Release:** 2011-10-25
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id473539346)
**AppTail Page:** [https://apptail.io/app/sky-time-NRxe/united-states](https://apptail.io/app/sky-time-NRxe/united-states)

## Sky Time Description
Sky Time is a simple app that displays Astronomy related times, including Julian Date and Universal Time. It also makes use of your device's ability to sense location to determine the Sidereal Time.

Sky Time is a useful tool to have to hand when setting up your telescope!

* Displays local, Julian, Local Sidereal and Universal Time.
* Night-vision friendly red display.
* Pop-up descriptions of the times at your fingertips.

## Sky Time Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple71/v4/04/1e/d3/041ed34e-4f92-7b43-bb70-c4e9a27c04a4/pr_source.png/312x390.png)

## Sky Time Rating Breakdown in United States
- 5 stars: 8 (47%)
- 4 stars: 4 (24%)
- 3 stars: 5 (29%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## Sky Time Reviews in United States

### ***-- "I loved this but it doesn’t work any more on new gear"
The app can’t determine current location under iPad OS 18.5
-- HarveySLiszt, 2025-06-17

### ***** "Awesome app"
Awesome app. About the only thing they can do better is add in watch complication options for each unit of time. I’m personally dying to find a watch complication for MJD from anyone. Really!

Great work. Love your app. Hope to love it better.
-- Skald Cat, 2024-01-20

### ****- "Nice, but..."
I like almost everything about this app except for one little thing that just bugs me. The sidereal time is displayed down to the second, but is only accurate to the minute. For some reason the developer chose to display the same value for seconds on sidereal time as for local and universal time. That’s just not right.
-- jec249, 2020-08-12

### ***-- "Not available as Complication"
Would be nice.  No?
-- NoBaseLikeHome, 2020-05-04

### ****- "Nice app, but problem with sidereal time."
I use this in a lab course on radio astronomy I teach to quickly see what the local sidereal time is. 
This is the problem: When the seconds roll over from 60 to 0, the minutes do not increment by 1 until after 20 seconds have passed by.  This is on an iPhone 11 pro.
-- Jim the astrophysicist, 2019-11-18

### ***-- "Text to small in field"
Exactly the app I was looking for: something to be a field clock while doing astronomy.

Except that everything but the local civil time is too small to easily read at night, and so I don’t use it.
-- PaplooTheLearned, 2019-06-30

### ***** "Great clock. Great astronomy app (with suggestion to developer)"
If you are an observer this one is for you. Don’t need to say anything else. Case closed. 
As I said one suggestion to developer... Can you make option to display sidereal time as the primary clock? That would be awesome.  Right now it’s just as one of the secondaries.  That clock I think is the main reason why someone would get this app, so make this a primary clock, please. Or include as an option, please. Thank you very much.
-- iownacamera, 2019-01-20

### ***-- "Parts not working"
I think the actual information displayed is correct, but...

- It won't display in landscape mode on an iPad, so I can't leave it propped up on a table and read it properly.
- The help menus don't work--I can't get the explanations of the different times that are shown in the examples in the AppStore.
-- pocketthinker, 2018-06-24

### ****- "Great for astronomers"
Nice simple app that allows me to setup my telescope computer.  The red theme is perfect for this, no need to change. 

Would be nice if updated to use all of the iPhone X screen.
-- NakMan, 2017-12-25

### ***-- "Color Makes it Hard to Read"
Needs a new color scheme. Red on reddish background doesn't make it. Check out a newspaper, magazine, or book, all designed for maximum ease in reading, maximum contrast. Black type on a white background.
-- Daoud, 2017-09-03

### ***** "SO well made. One of my favorites, for sure."
Living just outside the city, my friend showed me this and now I'm on the bandwagon - use it while traveling to get your bearings and then check out their other apps to learn something conversational about the billion points of light in the sky!

AAA stuff! Thank you.
-- ampl1tuherd0N, 2016-10-26

### **--- "What happened"
After the update my app went to basic. Where did my cool stuff go?
-- Buspilot4444, 2016-10-20

### *---- "Not accurate"
Sidereal time does not track what the USNO provides. Not even close to correct.
-- Casual astronomer, 2014-08-09

### ***** "Awesome but..."
Missing one important field I believe and that's "ELEVATION". Nonetheless, it's still a great app hence the 5 stars.
-- Brnbote, 2014-06-09

### ***** "Great !!!"
Perfect !!! Non cluttered interface, Thank you :-)
-- Spaceblanket, 2013-11-28

### ****- "Nice simple app"
One comment though...  LST data implies accuracy to the second but the seconds field just tracks wall clock time which is a little misleading.
-- Some random observer, 2012-09-22

### ***** "Handy"
Nicely done, handy little app. I'm thinking that a useful update would be to add a compass to the display too as there's a lot of room left on the screen. Just a suggestion. Great app though if this is something you need.
-- Joe_58, 2012-08-01

### ***** "Just what I needed"
I need to know the Julian date for spacecraft mission activities and it's a pain to calculate but this takes all the pain away. Brilliant!
-- Senior Scientist, 2011-12-27

### ***** "Great little app"
This is a very simple little app that does what it says. I particularly appreciate knowing the local sidereal time, and the red and black display, to preserve night vision. It's free, give it a try.
-- Anthony in SF, 2011-12-03

### ***-- "UTC has a problem"
The UTC display goes past 24 hours, like now mine says 27:35.  I sent developer a note but no updates yet.  I haven't taken it outside yet to verify the sidereal time.
-- Baroqueman, 2011-11-15

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



## Sky Time Discovered Keywords
- sky time

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## Sky Time Available In
- [United States](https://apptail.io/app/sky-time-NRxe/united-states)
- [Australia](https://apptail.io/app/sky-time-NRxe/australia)
- [Spain](https://apptail.io/app/sky-time-NRxe/spain)
- [Russia](https://apptail.io/app/sky-time-NRxe/russia)
- [Mexico](https://apptail.io/app/sky-time-NRxe/mexico)
- [Canada](https://apptail.io/app/sky-time-NRxe/canada)
- [Azerbaijan](https://apptail.io/app/sky-time-NRxe/azerbaijan)
- [Netherlands](https://apptail.io/app/sky-time-NRxe/netherlands)
- [Türkiye](https://apptail.io/app/sky-time-NRxe/turkey)
- [Germany](https://apptail.io/app/sky-time-NRxe/germany)
- [Finland](https://apptail.io/app/sky-time-NRxe/finland)
- [France](https://apptail.io/app/sky-time-NRxe/france)
- [United Kingdom](https://apptail.io/app/sky-time-NRxe/united-kingdom)
- [South Africa](https://apptail.io/app/sky-time-NRxe/south-africa)
- [Kuwait](https://apptail.io/app/sky-time-NRxe/kuwait)
- [China](https://apptail.io/app/sky-time-NRxe/china)
- [Greece](https://apptail.io/app/sky-time-NRxe/greece)
- [Hong Kong SAR China](https://apptail.io/app/sky-time-NRxe/hong-kong)
- [Hungary](https://apptail.io/app/sky-time-NRxe/hungary)
- [Indonesia](https://apptail.io/app/sky-time-NRxe/indonesia)
- [Ireland](https://apptail.io/app/sky-time-NRxe/ireland)
- [India](https://apptail.io/app/sky-time-NRxe/india)
- [Italy](https://apptail.io/app/sky-time-NRxe/italy)
- [Japan](https://apptail.io/app/sky-time-NRxe/japan)
- [South Korea](https://apptail.io/app/sky-time-NRxe/south-korea)
- [Kazakhstan](https://apptail.io/app/sky-time-NRxe/kazakhstan)
- [Lebanon](https://apptail.io/app/sky-time-NRxe/lebanon)
- [Malaysia](https://apptail.io/app/sky-time-NRxe/malaysia)
- [Nigeria](https://apptail.io/app/sky-time-NRxe/nigeria)
- [Norway](https://apptail.io/app/sky-time-NRxe/norway)
- [New Zealand](https://apptail.io/app/sky-time-NRxe/new-zealand)
- [Peru](https://apptail.io/app/sky-time-NRxe/peru)
- [Philippines](https://apptail.io/app/sky-time-NRxe/philippines)
- [Pakistan](https://apptail.io/app/sky-time-NRxe/pakistan)
- [Poland](https://apptail.io/app/sky-time-NRxe/poland)
- [Portugal](https://apptail.io/app/sky-time-NRxe/portugal)
- [Romania](https://apptail.io/app/sky-time-NRxe/romania)
- [Sweden](https://apptail.io/app/sky-time-NRxe/sweden)
- [Singapore](https://apptail.io/app/sky-time-NRxe/singapore)
- [Slovenia](https://apptail.io/app/sky-time-NRxe/slovenia)
- [United Arab Emirates](https://apptail.io/app/sky-time-NRxe/united-arab-emirates)
- [Taiwan](https://apptail.io/app/sky-time-NRxe/taiwan)
- [Ukraine](https://apptail.io/app/sky-time-NRxe/ukraine)
- [Uzbekistan](https://apptail.io/app/sky-time-NRxe/uzbekistan)
- [Vietnam](https://apptail.io/app/sky-time-NRxe/vietnam)
- [Thailand](https://apptail.io/app/sky-time-NRxe/thailand)
- [Angola](https://apptail.io/app/sky-time-NRxe/angola)
- [Argentina](https://apptail.io/app/sky-time-NRxe/argentina)
- [Austria](https://apptail.io/app/sky-time-NRxe/austria)
- [Belgium](https://apptail.io/app/sky-time-NRxe/belgium)
- [Brazil](https://apptail.io/app/sky-time-NRxe/brazil)
- [Belarus](https://apptail.io/app/sky-time-NRxe/belarus)
- [Switzerland](https://apptail.io/app/sky-time-NRxe/switzerland)
- [Chile](https://apptail.io/app/sky-time-NRxe/chile)
- [Colombia](https://apptail.io/app/sky-time-NRxe/colombia)
- [Czechia](https://apptail.io/app/sky-time-NRxe/czechia)
- [Denmark](https://apptail.io/app/sky-time-NRxe/denmark)
- [Dominican Republic](https://apptail.io/app/sky-time-NRxe/dominican-republic)
- [Algeria](https://apptail.io/app/sky-time-NRxe/algeria)
- [Ecuador](https://apptail.io/app/sky-time-NRxe/ecuador)
- [Egypt](https://apptail.io/app/sky-time-NRxe/egypt)

---

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