Local Sidereal Time 4+

Local Sidereal Time

Scott Spiller

Designed for iPad

    • 4.7 • 981 Ratings
    • Free
    • Offers In-App Purchases



Sidereal time is a timekeeping system that astronomers use to locate celestial objects. Using sidereal time, it is possible to easily point a telescope to the proper coordinates in the night sky. In short, sidereal time is a "time scale that is based on Earth's rate of rotation measured relative to the fixed stars", or more correctly, relative to the March equinox.

Studies show that your psychic abilities and remote viewing skills are increased by 400% during 13.5 local sidereal time. This sidereal time app will calculate the local sidereal time based on your location. If you purchase the pro version you can get notifications when it's 13:30 LST or you can get the next month's of 13:30 LST times to plan your meditations. With the pro version you can also calculate sidereal time by address, latitude and longitude or convert your current date and time to sidereal time. You can also touch anywhere on a world map and find the local sidereal time.

What’s New

Version 3.5

Bug fixes and general maintenance.

Ratings and Reviews

4.7 out of 5
981 Ratings

981 Ratings

nanlamm ,

Question about DST

Since the current (spring/summer) clock time in most of the US is fake daylight savings time, do we need to add an hour to the app’s stated local sidereal time when we are in fake DST? Then use the stated LST time as true sidereal time when we are returned to standard time in fall/winter? The app doesn’t automatically correct for daylight savings time according to our individual location?

Jeansandbrain ,

Alarm Doesn’t Work

First off, this app is a great idea. I love the ability to track and plan around optimum sidereal times. I just wish the alarm feature would work. I wake up to find the notification in there on my screen, but no noise or notification to my watch, even though I’ve allowed them to come through my sleep focus settings.

Also, it would be great if the “Contact Us” function didn’t require me to setup the canned email client on my iPhone in order to email the developer. I don’t want to do that and since there was no way to get the email address that I could find, I’m forced to leave a review in the hope that the developer reads my concerns here.

It might sound like I’m unhappy with this app. Far from it. These are just areas of improvement I see. Thank you!

Mame54321 ,

Used it for many years. Great App

I love this app. I use it every day. It’s a shame that the alarm feature stopped working a few years ago. But since sidereal time only changes four-minutes a day, it’s easy to kind of remember. I would happily pay the $4.99 again to get the alarms working.

App Privacy

The developer, Scott Spiller, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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