Dictionary term
Local Mean Solar Time
Direct answer
Local Mean Solar Time is uniform mean-solar time adjusted to a location's longitude.
Local Mean Solar Time is longitude-based clock time referenced to the mean Sun.
- Source
- The Great Almanac Dictionary
- Category
- Calendars & Timekeeping
- Also appears in
- Calendars & Timekeeping
- Aliases
- None listed
- Last updated
- 2026-07-16
Quick reference
- Use when
- Use Local Mean Solar Time for historical time conversion and observations recorded before standardized zones.
- Do not use it for
- Do not treat an old local-time record as modern zone time without knowing the observing longitude.
- Reference category
- Calendars & Timekeeping
- Related terms
- Local Apparent Solar Time, Equation of Time, Calendar, Julian Date
The story behind Local Mean Solar Time
Nineteenth-century towns commonly kept local mean time until transportation and telegraph networks favored standard meridians.
Local Mean Solar Time in spiritual tradition
Spiritually, local mean time shows how place and shared regularity can be held together.
The Great Almanac frames Local Mean Solar Time with educational restraint. Mystical or symbolic language may be meaningful, but it should not be exaggerated into certainty, panic, or permission to ignore ordinary responsibility.
Local Mean Solar Time in the Bible
This is a factual calendar, astronomy, Earth-science, cultural-history, or observational reference. It can support wonder and practical planning without becoming a claim of fate, spiritual causation, or private revelation.
Local Mean Solar Time in numerology
Local Mean Solar Time is not a numerology claim. Any numbers attached to it should retain their ordinary scientific, calendrical, navigational, or historical meaning unless a separate symbolic interpretation is clearly labeled.
Why Local Mean Solar Time matters
It removes true-Sun irregularity while preserving each meridian own local noon.
Example in a reading: Two towns one degree of longitude apart have Local Mean Solar Times about four minutes apart.
Interpretive caution: Do not treat an old local-time record as modern zone time without knowing the observing longitude.
How Local Mean Solar Time is used in a reading
Use Local Mean Solar Time for historical time conversion and observations recorded before standardized zones.
Where interpretation stops
Local Mean Solar Time is presented as sourced astronomy, calendrical, Earth-science, cultural, or instrument-history reference. Definitions should distinguish measured phenomena from civil convention and historical interpretation, preserve location and time dependencies, and avoid turning factual sky data into a deterministic personal claim.
Sources and editorial method
Research references used for this entry include:
- U.S. Naval Observatory: Astronomical Almanac Glossary - Reference definitions for astronomical periods, coordinates, dates, and time scales.
- U.S. Naval Observatory: Universal Time - Official explanation of Earth-rotation time and the Universal Time family.
The page starts with a direct definition, then separates use, example, caution, spiritual meaning, and historical context. For astrology, occult, demonology, curse, and spiritual warfare terms, the editorial rule is to explain the term without making fear-based, fatalistic, medical, legal, financial, or ritual-instruction claims.
Continue learning
Place this timekeeping idea beside the current sky, universal timing, and live celestial positions.
Open Worldwide WatchRelated terms
These related entries help place Local Mean Solar Time inside a wider reference cluster instead of leaving it as a standalone keyword.

