Sidereal Clock

Sidereal Clock Free App

Rated 4.29/5 (189) —  Free Android application by BSB Mobile

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About Sidereal Clock

The Sidereal Clock displays sidereal times and several other time standards, such as UTC, solar time and julian date. It has 3 time displays and you can choose what time to show in each of them.
All the displayed times are computed from the Sidereal Clock's own timebase which is synchronized to an external high precision NTP time server.
To compute the local times it gets your longitude via GPS.

The Sidereal Clock is supported by ads.

How to Download / Install

Download and install Sidereal Clock version 1.8.3 on your Android device!
Downloaded 10,000+ times, content rating: Everyone
Android package: bz.bsb.sidereal, download Sidereal Clock.apk

All Application Badges

Free
downl.
Android
4.0.3+
Bug
buster
For everyone
Android app

App History & Updates

What's Changed
Lollipop compatibility issues fixed
Screen rotation issue fixed
Bug fixes
Version update Sidereal Clock was updated to version 1.8.3
More downloads  Sidereal Clock reached 10 000 - 50 000 downloads
More downloads  Sidereal Clock reached 10 000 - 50 000 downloads
Version update Sidereal Clock was updated to version 1.7.4

What are users saying about Sidereal Clock

D70%
by D####:

How can I get a widget?

M70%
by M####:

It lost my longitude during the update, which threw me. Easily solved, but keeping settings during upgrades would be helpful.

D70%
by D####:

Good app. I wish I could choose how much to display at once, I would like the option of four or five items on the screen, not just three.

M70%
by M####:

How do I get the other clocks as shown..All I get is the sideral clock..

M70%
by M####:

Happy to get the actual time. Thanks

D70%
by D####:

Thank you!

M70%
by M####:

Why does this app need access to my identity? That's not a rhetorical question. Developers should explain that satisfactorily in the description.

M70%
by M####:

Used at my telescope for a year to set the analog setting circles. Updated to pro version. Not loaded down with ever featured under the sun.

R70%
by R####:

I use this app along side my telescope to set the mean solar time. It would save me another step if the date could be in the same screen. I still love it.

N70%
by N####:

This is something which I've been looking for on Android and I won't mind paying for it, to get rid of the ads.

R70%
by R####:

It is very good and useful, but I just wish it could display more times than just 3.

R70%
by R####:

Very good app

R70%
by R####:

Please add an option to set an alarm to go off at a certain sidereal time. Please, pretty please.

Q70%
by Q####:

Being able to display and 'hold' UTC and local/Greenwich sidereal time is ideal for practicing celestial navigation.

R70%
by R####:

Wonderful App ! Would be much better if a calculator was included to tell at what local time would a particular sidereal time frame would occur.

Y70%
by Y####:

Two feature requests. First, don't rotate when device has locked rotation (really a bug fix). Second, do a Pebble Watch companion app! I want the option of real local time on my wrist, enough with this Standard Time hegemony.

Z70%
by Z####:

Font matters to view time at a glance without glasses. Often I only want to the minute or even nearest 5 or even 10 main AT A GLANCE.

B70%
by B####:

I finally found the options menu by holding the Recent key on my Galaxy Tab. It does what I want, but the interface is clunky.

N70%
by N####:

works just fine.

P70%
by P####:

Nice app. Would be even nicer if I could set the longitude manually and individually per time display. And there is space for more time displays.

Z70%
by Z####:

Simple and very useful. Just what I was looking for. Thanks Mitchl

Z70%
by Z####:

Great app. Would be even better with a sidereal alarm setting.

Z70%
by Z####:

Wonderful App ! Would be much better if a calculator was included to tell at what local time would a particular sidereal time frame would occur.

A70%
by A####:

"...jtg...aqt...time warp...???...thanks..."

U70%
by U####:

I have my Tablet set to Rotation Locked, but this app overrides that. It's most inconvenient and I request that it be fixed, please! Then I will give this very helpful app Five Stars!

U70%
by U####:

Needs a way to default to the analog clock. Wouldn't mind having a night mode as well.

U70%
by U####:

Does the non-paid version even offer a menu to change between digital and analog mode? If it does it's hidden nicely. If you need to pay for analog mode then that should be clearly stated.

U70%
by U####:

Just set the longitude to get best LST value.... A good app for observers...

X70%
by X####:

Analog is a mess on Galaxy Tab 10.1. Digital clocks are fine. I'll probably buy it when the bugs are swatted.

D70%
by D####:

5 stars and purchase for a widget with multi alert/alarms. Please.

L70%
by L####:

Should be illuminated with red light to preserve night vision. Otherwise great for use at the telescope.

X70%
by X####:

Clear data/cache on update If sidereal time shows as 88:88:88, clear the app's cache & data. Works MUCH better after.

R70%
by R####:

Sidereal Display not broken--just needs to be set. Touch screen @ time display and select time to display in that spot. REALLY NEEDS AN ALARM!

X70%
by X####:

Nice app! Elke

X70%
by X####:

No competition that I could find. No loss though, this one is almost perfect. More times could be displayed.

X70%
by X####:

I am using an HTC EVO 3D and it appears that Sidereal so-called UTC Coord Universal is actually derived from my Android system clock, that is 15 seconds fast, due to Android bug 5485. Basically no Android application should claim UTC discipline unless fetching UTC from a reliable source, such as an NTP server, equating the delay as well.

X70%
by X####:

Extremely useful, especially when combined with "clocksync" and a rooted phone. Finally I have exact time :-) nexus one

D70%
by D####:

Works great, if it had alarms it would be outstanding! Please add alarm feature to notify you when the sky is in the position required to view event.

X70%
by X####:

Finally! Ive been waiting for one for telescope use

C70%
by C####:

New update works properly for me. Thanks!


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Rating Distribution

RATING
4.35
189 users

5

4

3

2

1