Best Sidereal Time Apps

88+ iOS apps curated and reviewed

4.3 avg rating

18 free apps

Updated September 2026

The best sidereal time apps on iPhone average 4.3★ across 88+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Sidereal Time Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Local Sidereal Time	Free	4.7★ (1.1K)	No	Yes	Sep 2026
2	LSTclock: sidereal time clock	Free	3.8★ (10)	No	No	Jul 2026
3	Sky Time	Free	4.2★ (17)	No	No	May 2026
4	Real:Time	Free	5.0★ (2)	No	No	May 2026
5	Kemetic Calendar	Free	4.5★ (30)	No	Yes	Sep 2026
6	Sidereal Watch	$2.99	—	No	No	Aug 2026
7	Desktop Astro Clock	Free	3.7★ (3)	No	No	May 2026
8	World Sun Time	Free	—	No	No	Aug 2026

Top Picks for Sidereal Time

#1

Local Sidereal Time by Scott Spiller

Local Sidereal Time

Editor's Choice

4.7😊(1.1K ratings)

FreeIn-App Purchases

Local Sidereal Time screenshot 1

Local Sidereal Time screenshot 2

Local Sidereal Time screenshot 3

Local Sidereal Time screenshot 4

Local Sidereal Time screenshot 5

This app calculates local sidereal time, a system astronomers use to locate celestial objects. It can also be used for personal development, with studies suggesting increased psychic abilities during specific sidereal times. The pro version offers advanced features like notifications and map-based calculations.

What We Love

👍 Easy to use
🚀 Useful app
💡 Helpful notifications
👍 Great customer service
💡 Excellent tool

Room to Improve

🐛 Alarm doesn't work
🐛 Crashes frequently
🔒 Pro purchase issues
🐛 Notification issues

#2

LSTclock: sidereal time clock by Tsuyoshi Sawada

Local sidereal time clock

Strong Contender

3.8(10 ratings)

Free

LSTclock: sidereal time clock screenshot 1

LSTclock: sidereal time clock screenshot 2

LSTclock: sidereal time clock screenshot 3

LSTclock: sidereal time clock screenshot 4

LSTclock: sidereal time clock screenshot 5

LSTclock: sidereal time clock screenshot 6

This utility app displays local sidereal time for registered locations on iOS, iPadOS, and watchOS. It can also calculate sidereal time and Julian Date for any date and time, and sync locations between devices.

#3

Sky Time by John Kennedy

Worth Considering

4.2(17 ratings)

Free

Sky Time screenshot 1

Sky Time screenshot 2

Sky Time screenshot 3

This app provides essential astronomy-related time data, including Julian Date, Universal Time, and Sidereal Time calculated using your device's location. It features a night-vision friendly red display and pop-up descriptions for easy understanding.

More Sidereal Time apps to explore

by Rotblauer, LLC

This utility app displays the current time based on your geographical longitude. It calculates local mean time and true solar time, accounting for the Equation of Time and daylight saving. It also shows the difference between your real time and standard clock time.

Real-time display based on longitudeLocal mean time calculationTrue solar time calculation

Kemetic Calendar

Kemetic Calendar

Kemetic Calendar

The Sidereal Calendar

Explore humanity's oldest calendar, based on the heliacal rising of Sirius. This app syncs with your phone, allows event scheduling, and educates on Divinities and Holy Days. Reconnect with ancient culture through astronomical accuracy.

Astronomically accurate timekeepingSyncs with phone calendarEvent scheduling and import

free with in-app purchases

by Scott Spiller

Desktop Astro Clock

Desktop Astro Clock

Desktop Astro Clock

Julian, Sidereal and the Moon

This utility app displays time in various formats, including Julian, Sidereal, and GMT. It offers always-on display options, moon and meteor shower information, and customizable clock configurations. Widgets and a watchOS app are also supported for enhanced functionality.

Multiple time formats (Julian, Sidereal, GMT)Always-on display with battery thresholdMoon phase and meteor shower information

Day & Night World Map

Choghadiya and Hora timing

by Jevon Charles

Convert between standard calendar dates and Julian dates. Supports 5-digit and full Julian date formats, including time. Also allows conversion from Julian dates back to calendar dates.

5 Digit Julian Date conversionFull Julian Date conversionCalendar Date to Julian Date

📊 Productivity

Kundli Software

Kundli Software

Kundli Software

by Ojas Softech Pvt Ltd

This app provides detailed astrological charts, predictions, and compatibility reports. It supports various Indian astrological systems and offers insights into planetary influences and doshas. Users can also access an online shop for astrological items.

Detailed Kundli (Birth Chart)Astrology Predictions & ReportsParashari & KP System Astrology

🎬 Entertainment

Astro Future - Daily Horoscope

Astro Future - Daily Horoscope

Astro Future - Daily Horoscope

Astrology & Love Compatibility

Explore your birth chart and gain insights into your life and future through detailed horoscopes. Understand planetary influences, check compatibility, and discover astrological events with this comprehensive astrology app.

Birth charts with detailed horoscopesDaily horoscopes with widgetsTransit charts and solar system view

Jyotish Dashboard™ Preview

Jyotish Dashboard™ Preview

Jyotish Dashboard™ Preview

Indian/Vedic Astrology Charts

This app offers comprehensive Indian/Vedic astrology charting with high-precision calculations. It provides tools for transit charts, chart management, and detailed astrological data like divisional charts, dashas, and panchang. Perform chart readings on the go with extensive customization options.

Transit - Here & Now chart constructionUnlimited chart storageAll major divisional charts

AstroMate: Horoscope Astrology

AstroMate: Horoscope Astrology

AstroMate: Horoscope Astrology

Ephemeris,Synastry Pro Charts

Explore astrological insights with personalized horoscopes, synastry charts, and planetary transit information. Understand relationship dynamics, future events, and gain guidance through tarot readings. Offers a free core experience with optional subscriptions for advanced features.

Personalized daily horoscopesSynastry for relationship analysisEphemeris for planetary transits

free with in-app purchases

by SIDEREAL TECHNOLOGIES PRIVATE LIMITED

Hindu Calendar - Drik Panchang

Hindu Calendar - Drik Panchang

Hindu Calendar - Drik Panchang

Hindu Calendar with festivals

This app provides a detailed Hindu calendar and Vedic astrology information. It includes daily Panchang details, festival listings, and astrological calculations like Kundali generation and horoscope matching.

Customizable grid calendarExtensive festival and holiday listingsKundali generation and planetary positions

free with in-app purchases

Analog clock & Zmanim

This app displays an analog clock showing variable Jewish hours based on your location, adjusting automatically as you move. It helps users live by these times for daily Jewish life, including Shabbat and special events. Optional purchases unlock advanced configuration and continuous display features.

Analog clock with variable hoursAutomatic location adjustmentDisplays Jewish Date

📊 Productivity

free with in-app purchases

Time Nomad Astrology Charts

Time Nomad Astrology Charts

Time Nomad Astrology Charts

Astrology for a Pro

This advanced astrology app provides professional-level astrological chart calculations, including tropical and sidereal zodiacs. It offers tools for planetary hours, alarms, and various interactive widgets. Users can create unlimited profiles, take notes, and access a blog for virtual astrology training.

Accurate birth chart calculationsTropical and sidereal zodiac supportPlanetary hours calculator and alarm

free with in-app purchases

Sidereal Metronome

Sidereal Metronome

Sidereal Metronome

Guitar, drums, piano practice

This metronome app is designed for musicians to improve their daily practice. It offers essential tools like BPM adjustment, time signature settings, and clear visual feedback to help users maintain focus and rhythm. Enjoy uninterrupted practice with background audio support.

Direct BPM controlTime signature editingVisual beat display

World Natural Time

World Natural Time

World Natural Time

The one that really is

FAQ about Sidereal Time

What are the best sidereal time apps for iPhone?

Local Sidereal Time tops our sidereal time apps ranking as of September 2026, with a 4.7-star average from 1.1K App Store ratings, and it's free to download.

Are there free sidereal time apps for iPhone?

Yes — 18 of the top sidereal time apps we rank are free to download, including Local Sidereal Time and LSTclock: sidereal time clock.

Does Local Sidereal Time have ads or in-app purchases?

Local Sidereal Time has no ads and offers in-app purchases, according to its App Store listing as of September 2026.

How many sidereal time apps are on the App Store?

We track 88+ sidereal time apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What is local sidereal time and how is it used?

Local sidereal time is a timekeeping system used by astronomers to accurately locate celestial objects in the night sky. It is based on Earth's rotation relative to the fixed stars or the March equinox, allowing for precise pointing of telescopes.

What are the benefits of using this app for personal development?

Studies suggest that certain local sidereal times, specifically around 13:30 LST, may increase psychic abilities and remote viewing skills by up to 400%. The app can help users track these times for meditation or personal exploration.

Related searches

local sidereal time lstclock: sidereal time clock