Time Indicator Working STEM Lab
Product Code : SCL-MH-12494
Quick Answer: The Time Indicator Working STEM Lab is a sundial-style time model in which an LED light source throws the shadow of a brass gnomon onto 12-hour and 24-hour time rings. It is used to relate solar time, longitude and standard time.
Last updated: October 2026
Key Features
- Brass gnomon pointer on an anodised aluminium and ABS body
- 3W focusable LED on a pivoting arm as the Sun
- Dual 12-hour (AM/PM) and 24-hour rings marked in 10-minute intervals
- Quadrant arc with thumb-screw lock to set the local latitude
- Base dial showing the Equation of Time and 24 major city meridians
Technical Specifications
| Specification | Value |
|---|---|
| Materials | Anodised aluminium, brass gnomon pointer, ABS base |
| Light source | 3W focusable LED on pivoting arm |
| Time scale | 12-hour and 24-hour rings, 10-minute intervals |
| Latitude setting | Quadrant arc with thumb-screw lock |
| Base dial | Equation of Time; 24 city meridians |
| Dimensions (L x W x H) | 26.5 cm x 22.0 cm x 31.5 cm |
About This Product
After setting the latitude on the arc, students turn the time plate until the gnomon’s shadow sits on the noon mark and then read how solar time differs from clock time. The city meridians and the 4-minute-per-degree rule for longitude help explain local mean time and time zones, while the Equation of Time dial shows why sundial time drifts through the year. The Time Indicator Working STEM Lab can be supplied on export terms to Belarus, Rwanda, Trinidad and Tobago, Kazakhstan and Belgium.
Frequently Asked Questions
How is local solar noon found on the Time Indicator?
Turn the main time plate until the shadow of the brass gnomon lines up with the 12:00 noon mark on the inner dial.
Related: Mechanics & Heat, Four Seasons Working STEM Lab and Solar System Working Model STEM Lab.
For a quotation on the Time Indicator Working STEM Lab, contact Educational Instrument.
