Local Sidereal Time (LST) Tool for Amateur Astronomy

Ver. 1.0 (Minimalist). Last Verified and Updated 7-11-2026. K. Fisher fisherka@ipns.com

Local Sidereal Time: UTC: Local:

0hr-Reset +1hr +3hr +6hr +9hr +12hr Toggle Night Vision

Obs. Lat.°: Obs. Long.°: Update Obs. LST

LST North:

GNU Copyright © Kurt A. Fisher 2026: Some Rights Reserved. This work is free software: you can redistribute it, fork it, and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3 of the License, as amended.