# LSTclock: sidereal time clock

> Local sidereal time clock

Canonical page: [https://chrome-stats.com/d/id1510148631](https://chrome-stats.com/d/id1510148631)

## Overview

- **ID:** `id1510148631`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Tsuyoshi Sawada
- **Category:** Utilities
- **Rating:** 3.80 / 5 (10 ratings)
- **Version:** 9.4
- **Last updated:** 2026-07-07
- **First published:** 2020-04-26
- **Size:** 15 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/lstclock-sidereal-time-clock/id1510148631)
- **Privacy policy:** [http://www.tanusouth.com/app/LSTclock/#privacy](http://www.tanusouth.com/app/LSTclock/#privacy)

## Description

LSTclock is an iOS/iPadOS/watchOS app that displays the local sidereal time (LST) at registered location(s).  On iOS/iPadOS, it can also calculate LST and Julian Date for any date and time.  The list of locations can be synced between iPhone and paired Apple Watch(es).

## Rankings

- #360,870 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1510148631)