# Daylight & Orientation: Pasir Gudang, Malaysia > How to research daylight & orientation for a specific site in Pasir Gudang — the controlling authority, source documents, and checks to run before you rely on a number. - Canonical: https://harth.build/resources/solar-data/daylight-orientation-pasir-gudang-my/ - Last updated: 2026-09-02 - Data source: Location data from the [GeoNames MY dump](https://download.geonames.org/export/dump/MY.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 1732722). Regulatory starting point: [the applicable state and local authority](https://jkt.kpkt.gov.my/). Figures are illustrative — verify against the current locally adopted edition for the site. Solar-method context: [NOAA Solar Calculation Details](https://gml.noaa.gov/grad/solcalc/calcdetails.html); the Harth monthly table uses a simpler declination and geometric-daylight approximation whose stated limitations must be retained. Project-date refinement reference: [NREL Solar Position Algorithm](https://midcdmz.nrel.gov/spa/). ## Key facts | Fact | Value | | --- | --- | | Location reference | 1.4620, 103.9053 (GeoNames ID 1732722; replace with surveyed project coordinates) | | Administrative area | 01 (GeoNames snapshot code; confirm the competent local jurisdiction) | | Regulatory starting point | Uniform Building By-Laws and state or local-authority adoption (country-level context only; identify the competent local authority) | | June-solstice solar-noon check | 68.0° (declination-only geometry; not an hourly obstruction model) | | Equinox solar-noon check | 88.5° (declination-only geometry) | | December-solstice solar-noon check | 65.1° (declination-only geometry; verify civil time and horizon) | | Approximate daylight range | 11.9–12.1 hours (representative 21st-day geometry (December to June); excludes refraction and terrain) | ## Direct answer For Pasir Gudang at 1.4620, 103.9053, the declination-only solar-noon altitude is approximately 68.0° at the June solstice, 88.5° at an equinox and 65.1° at the December solstice. Refine these geometry checks with the project date, civil time, facade azimuth, terrain and local horizon. The reproducible location record is GeoNames ID 1732722 in administrative area 01, at 1.4620, 103.9053; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 68.0° at the June solstice, 88.5° at an equinox and 65.1° at the December solstice. Representative 21st-day geometry ranges from about 11.9 hours in December to 12.1 hours in June; this excludes atmospheric refraction, terrain and obstruction effects. The cited national authority is a discovery starting point; current local documents and a named qualified reviewer control project use of this daylight and building orientation record. *Content and cited inputs reviewed by [Scott Barrington](https://nz.linkedin.com/in/barrington), Harth founder and architectural technology specialist · Published 2026-08-26 · Updated 2026-09-02.* ## What must be verified for Pasir Gudang? Pasir Gudang is represented here at approximately **1.4620, 103.9053** for discovery and workflow planning. A project address, parcel, elevation, exposure, authority, and submission date must replace that city-centre reference before design use. ## How should daylight and building orientation be established? 1. Fix the surveyed site and local time basis. 2. Select an authoritative weather source or a named solar-position algorithm. 3. Record period, percentile or scenario and units. 4. Test sensitivity to elevation, exposure, urban form and horizon. 5. Save the source file, retrieval date and checker in the model record. | Input | Project-specific evidence | QA question | | --- | --- | --- | | Site | surveyed coordinates, elevation and horizon | Does the point represent the building? | | Weather/solar method | named dataset, algorithm, period and time basis | Are station, time zone and units explicit? | | Design scenario | current and future scenario agreed by the team | Is an average being mistaken for an extreme? | | Compliance | adopted local document and edition | Was applicability confirmed with the authority? | ## What are the limits of this worksheet? This daylight-workflow page is a project-starting worksheet, not a design value or approval. The controlling authority and qualified professionals for the Pasir Gudang site remain authoritative. ## Pasir Gudang monthly solar geometry check for daylight & orientation | Representative date | Declination | Solar-noon altitude | Geometric daylight | Noon shadow / height | | --- | ---: | ---: | ---: | ---: | | 21 January | -20.14° | 68.40° | 11.929 h | 0.396 | | 21 February | -11.23° | 77.31° | 11.961 h | 0.225 | | 21 March | -0.40° | 88.13° | 11.999 h | 0.033 | | 21 April | +11.58° | 79.88° | 12.040 h | 0.178 | | 21 May | +20.14° | 71.32° | 12.071 h | 0.338 | | 21 June | +23.45° | 68.01° | 12.085 h | 0.404 | | 21 July | +20.44° | 71.02° | 12.073 h | 0.344 | | 21 August | +11.75° | 79.71° | 12.041 h | 0.182 | | 21 September | -0.20° | 88.34° | 11.999 h | 0.029 | | 21 October | -11.75° | 76.78° | 11.959 h | 0.235 | | 21 November | -20.44° | 68.10° | 11.927 h | 0.402 | | 21 December | -23.45° | 65.09° | 11.915 h | 0.464 | ## Pasir Gudang solar-geometry fingerprint at 1.4620, 103.9053 - **Pasir Gudang, 21 January:** declination -20.14°, noon altitude 68.40°, zenith 21.60°, geometric daylight 11.929 hours, and vertical-object noon shadow ratio 0.396. - **Pasir Gudang, 21 February:** declination -11.23°, noon altitude 77.31°, zenith 12.69°, geometric daylight 11.961 hours, and vertical-object noon shadow ratio 0.225. - **Pasir Gudang, 21 March:** declination -0.40°, noon altitude 88.13°, zenith 1.87°, geometric daylight 11.999 hours, and vertical-object noon shadow ratio 0.033. - **Pasir Gudang, 21 April:** declination +11.58°, noon altitude 79.88°, zenith 10.12°, geometric daylight 12.040 hours, and vertical-object noon shadow ratio 0.178. - **Pasir Gudang, 21 May:** declination +20.14°, noon altitude 71.32°, zenith 18.68°, geometric daylight 12.071 hours, and vertical-object noon shadow ratio 0.338. - **Pasir Gudang, 21 June:** declination +23.45°, noon altitude 68.01°, zenith 21.99°, geometric daylight 12.085 hours, and vertical-object noon shadow ratio 0.404. - **Pasir Gudang, 21 July:** declination +20.44°, noon altitude 71.02°, zenith 18.98°, geometric daylight 12.073 hours, and vertical-object noon shadow ratio 0.344. - **Pasir Gudang, 21 August:** declination +11.75°, noon altitude 79.71°, zenith 10.29°, geometric daylight 12.041 hours, and vertical-object noon shadow ratio 0.182. - **Pasir Gudang, 21 September:** declination -0.20°, noon altitude 88.34°, zenith 1.66°, geometric daylight 11.999 hours, and vertical-object noon shadow ratio 0.029. - **Pasir Gudang, 21 October:** declination -11.75°, noon altitude 76.78°, zenith 13.22°, geometric daylight 11.959 hours, and vertical-object noon shadow ratio 0.235. - **Pasir Gudang, 21 November:** declination -20.44°, noon altitude 68.10°, zenith 21.90°, geometric daylight 11.927 hours, and vertical-object noon shadow ratio 0.402. - **Pasir Gudang, 21 December:** declination -23.45°, noon altitude 65.09°, zenith 24.91°, geometric daylight 11.915 hours, and vertical-object noon shadow ratio 0.464. Harth computed the Pasir Gudang fingerprint for latitude 1.4620° with the Cooper declination approximation, `90° - |latitude - declination|` at solar noon, centre-to-centre sunrise hour angle and `1 / tan(altitude)` shadow ratio. Longitude 103.9053° is retained for a later civil-time conversion; this screen does not perform that conversion. See [NOAA's solar calculation details](https://gml.noaa.gov/grad/solcalc/calcdetails.html). Atmospheric refraction, terrain, facade azimuth and obstructions remain outside this first-pass comparison. ## Where can you explore related guidance? - [Explore all solar data guidance](https://harth.build/resources/solar-data.md) - [Sun Path: Pasir Gudang, Malaysia](https://harth.build/resources/solar-data/sun-path-pasir-gudang-my.md) - [Solar Altitude & Azimuth: Pasir Gudang, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-pasir-gudang-my.md) - [Solar Shading Design: Pasir Gudang, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-pasir-gudang-my.md) - [Sun Path: Mukim Pulai, Malaysia](https://harth.build/resources/solar-data/sun-path-mukim-pulai-my.md) - [Solar Altitude & Azimuth: Mukim Pulai, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-mukim-pulai-my.md) - [Solar Shading Design: Mukim Pulai, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-mukim-pulai-my.md) - [Daylight & Orientation: Mukim Pulai, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-mukim-pulai-my.md) - [Sun Path: Kota Kinabalu, Malaysia](https://harth.build/resources/solar-data/sun-path-kota-kinabalu-my.md) - [Solar Altitude & Azimuth: Kota Kinabalu, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-kota-kinabalu-my.md) - [Sun Path: Kampung Larkin Lama, Malaysia](https://harth.build/resources/solar-data/sun-path-kampung-larkin-lama-my.md) - [Sun Path: Kota Damansara, Malaysia](https://harth.build/resources/solar-data/sun-path-kota-damansara-my.md) - [Sun Path: Sandakan, Malaysia](https://harth.build/resources/solar-data/sun-path-sandakan-my.md) - [Sun Path: Kuala Terengganu, Malaysia](https://harth.build/resources/solar-data/sun-path-kuala-terengganu-my.md) - [Sun Path: Taman Petaling, Malaysia](https://harth.build/resources/solar-data/sun-path-taman-petaling-my.md) - [Sun Path: Alor Setar, Malaysia](https://harth.build/resources/solar-data/sun-path-alor-setar-my.md) - [Sun Path: Kampung Kangkar Teberau, Malaysia](https://harth.build/resources/solar-data/sun-path-kampung-kangkar-teberau-my.md) - [Sun Path: Kuching, Malaysia](https://harth.build/resources/solar-data/sun-path-kuching-my.md) - [Sun Path: Puchong, Malaysia](https://harth.build/resources/solar-data/sun-path-puchong-my.md) - [Sun Path: Seremban, Malaysia](https://harth.build/resources/solar-data/sun-path-seremban-my.md) - [Sun Path: Tawau, Malaysia](https://harth.build/resources/solar-data/sun-path-tawau-my.md) - [Sun Path: Setapak, Malaysia](https://harth.build/resources/solar-data/sun-path-setapak-my.md) - [Sun Path: Kluang, Malaysia](https://harth.build/resources/solar-data/sun-path-kluang-my.md) - [Sun Path: Muar, Malaysia](https://harth.build/resources/solar-data/sun-path-muar-my.md) - [Sun Path: Miri, Malaysia](https://harth.build/resources/solar-data/sun-path-miri-my.md) - [Sun Path: Kapar, Malaysia](https://harth.build/resources/solar-data/sun-path-kapar-my.md) - [Sun Path: Batu Caves, Malaysia](https://harth.build/resources/solar-data/sun-path-batu-caves-my.md) - [Sun Path: Klang, Malaysia](https://harth.build/resources/solar-data/sun-path-klang-my.md) - [Sun Path: Kajang, Malaysia](https://harth.build/resources/solar-data/sun-path-kajang-my.md) - [Sun Path: Teluk Intan, Malaysia](https://harth.build/resources/solar-data/sun-path-teluk-intan-my.md) - [Sun Path: Kampong Baharu Cheras Batu Sebelas, Malaysia](https://harth.build/resources/solar-data/sun-path-kampong-baharu-cheras-batu-sebelas-my.md) - [Sun Path: Pasir Mas, Malaysia](https://harth.build/resources/solar-data/sun-path-pasir-mas-my.md) - [Sun Path: Paya Terubong, Malaysia](https://harth.build/resources/solar-data/sun-path-paya-terubong-my.md) - [Sun Path: Sungai Buloh, Malaysia](https://harth.build/resources/solar-data/sun-path-sungai-buloh-my.md) - [Sun Path: Bandar Seri Alam, Malaysia](https://harth.build/resources/solar-data/sun-path-bandar-seri-alam-my.md) - [Sun Path: Taiping, Malaysia](https://harth.build/resources/solar-data/sun-path-taiping-my.md) - [Sun Path: Kuala Lumpur, Malaysia](https://harth.build/resources/solar-data/sun-path-kuala-lumpur-my.md) - [Solar Altitude & Azimuth: Kuala Lumpur, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-kuala-lumpur-my.md) - [Solar Shading Design: Kuala Lumpur, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-kuala-lumpur-my.md) - [Daylight & Orientation: Kuala Lumpur, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-kuala-lumpur-my.md) - [Sun Path: Johor Bahru, Malaysia](https://harth.build/resources/solar-data/sun-path-johor-bahru-my.md) - [Solar Altitude & Azimuth: Johor Bahru, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-johor-bahru-my.md) - [Solar Shading Design: Johor Bahru, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-johor-bahru-my.md) - [Daylight & Orientation: Johor Bahru, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-johor-bahru-my.md) - [Sun Path: Kampung Baru Subang, Malaysia](https://harth.build/resources/solar-data/sun-path-kampung-baru-subang-my.md) - [Solar Altitude & Azimuth: Kampung Baru Subang, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-kampung-baru-subang-my.md) - [Solar Shading Design: Kampung Baru Subang, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-kampung-baru-subang-my.md) - [Daylight & Orientation: Kampung Baru Subang, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-kampung-baru-subang-my.md) - [Sun Path: Petaling Jaya, Malaysia](https://harth.build/resources/solar-data/sun-path-petaling-jaya-my.md) - [Solar Altitude & Azimuth: Petaling Jaya, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-petaling-jaya-my.md) - [Solar Shading Design: Petaling Jaya, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-petaling-jaya-my.md) - [Daylight & Orientation: Petaling Jaya, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-petaling-jaya-my.md) - [Sun Path: Ipoh, Malaysia](https://harth.build/resources/solar-data/sun-path-ipoh-my.md) - [Solar Altitude & Azimuth: Ipoh, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-ipoh-my.md) - [Solar Shading Design: Ipoh, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-ipoh-my.md) - [Daylight & Orientation: Ipoh, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-ipoh-my.md) - [Sun Path: Shah Alam, Malaysia](https://harth.build/resources/solar-data/sun-path-shah-alam-my.md) - [Solar Altitude & Azimuth: Shah Alam, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-shah-alam-my.md) - [Solar Shading Design: Shah Alam, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-shah-alam-my.md) - [Daylight & Orientation: Shah Alam, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-shah-alam-my.md) - [Sun Path: Subang Jaya, Malaysia](https://harth.build/resources/solar-data/sun-path-subang-jaya-my.md) - [Solar Altitude & Azimuth: Subang Jaya, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-subang-jaya-my.md) - [Solar Shading Design: Subang Jaya, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-subang-jaya-my.md) - [Daylight & Orientation: Subang Jaya, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-subang-jaya-my.md) - [Sun Path: Bukit Rahman Putra, Malaysia](https://harth.build/resources/solar-data/sun-path-bukit-rahman-putra-my.md) - [Solar Altitude & Azimuth: Bukit Rahman Putra, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-bukit-rahman-putra-my.md) - [Solar Shading Design: Bukit Rahman Putra, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-bukit-rahman-putra-my.md) - [Daylight & Orientation: Bukit Rahman Putra, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-bukit-rahman-putra-my.md) - [Sun Path: Pelentong, Malaysia](https://harth.build/resources/solar-data/sun-path-pelentong-my.md) - [Solar Altitude & Azimuth: Pelentong, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-pelentong-my.md) - [Solar Shading Design: Pelentong, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-pelentong-my.md) - [Daylight & Orientation: Pelentong, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-pelentong-my.md) - [Sun Path: Malacca, Malaysia](https://harth.build/resources/solar-data/sun-path-malacca-my.md) - [Solar Altitude & Azimuth: Malacca, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-malacca-my.md) - [Solar Shading Design: Malacca, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-malacca-my.md) - [Daylight & Orientation: Malacca, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-malacca-my.md) - [Sun Path: Iskandar Puteri, Malaysia](https://harth.build/resources/solar-data/sun-path-iskandar-puteri-my.md) - [Solar Altitude & Azimuth: Iskandar Puteri, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-iskandar-puteri-my.md) - [Solar Shading Design: Iskandar Puteri, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-iskandar-puteri-my.md) - [Daylight & Orientation: Iskandar Puteri, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-iskandar-puteri-my.md) - [Sun Path: Kota Bharu, Malaysia](https://harth.build/resources/solar-data/sun-path-kota-bharu-my.md) - [Solar Altitude & Azimuth: Kota Bharu, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-kota-bharu-my.md) - [Solar Shading Design: Kota Bharu, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-kota-bharu-my.md) - [Daylight & Orientation: Kota Bharu, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-kota-bharu-my.md) - [Sun Path: Kuantan, Malaysia](https://harth.build/resources/solar-data/sun-path-kuantan-my.md) - [Solar Altitude & Azimuth: Kuantan, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-kuantan-my.md) - [Solar Shading Design: Kuantan, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-kuantan-my.md) - [Daylight & Orientation: Kuantan, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-kuantan-my.md) - [Sun Path: Kota Kuala Muda, Malaysia](https://harth.build/resources/solar-data/sun-path-kota-kuala-muda-my.md) - [Solar Altitude & Azimuth: Kota Kuala Muda, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-kota-kuala-muda-my.md) - [Solar Shading Design: Kota Kuala Muda, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-kota-kuala-muda-my.md) - [Daylight & Orientation: Kota Kuala Muda, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-kota-kuala-muda-my.md) - [Sun Path: Sungai Petani, Malaysia](https://harth.build/resources/solar-data/sun-path-sungai-petani-my.md) - [Solar Altitude & Azimuth: Sungai Petani, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-sungai-petani-my.md) - [Solar Shading Design: Sungai Petani, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-sungai-petani-my.md) - [Daylight & Orientation: Sungai Petani, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-sungai-petani-my.md) - [Sun Path: Selayang Baru Utara, Malaysia](https://harth.build/resources/solar-data/sun-path-selayang-baru-utara-my.md) - [Solar Altitude & Azimuth: Selayang Baru Utara, Malaysia](https://harth.build/resources/solar-data/solar-altitude-azimuth-selayang-baru-utara-my.md) - [Solar Shading Design: Selayang Baru Utara, Malaysia](https://harth.build/resources/solar-data/solar-shading-design-selayang-baru-utara-my.md) - [Daylight & Orientation: Selayang Baru Utara, Malaysia](https://harth.build/resources/solar-data/daylight-orientation-selayang-baru-utara-my.md) - [All solar & daylight data guidance for Malaysia](https://harth.build/resources/solar-data/malaysia.md) - [House Construction Cost Planning: Pasir Gudang, Malaysia](https://harth.build/resources/construction-costs/house-construction-cost-pasir-gudang-my.md) - [Office Construction Cost Planning: Pasir Gudang, Malaysia](https://harth.build/resources/construction-costs/office-construction-cost-pasir-gudang-my.md) - [Retail Construction Cost Planning: Pasir Gudang, Malaysia](https://harth.build/resources/construction-costs/retail-construction-cost-pasir-gudang-my.md) - [School Construction Cost Planning: Pasir Gudang, Malaysia](https://harth.build/resources/construction-costs/school-construction-cost-pasir-gudang-my.md) ## Sources and method Location data from the [GeoNames MY dump](https://download.geonames.org/export/dump/MY.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 1732722). Regulatory starting point: [the applicable state and local authority](https://jkt.kpkt.gov.my/). Figures are illustrative — verify against the current locally adopted edition for the site. Solar-method context: [NOAA Solar Calculation Details](https://gml.noaa.gov/grad/solcalc/calcdetails.html); the Harth monthly table uses a simpler declination and geometric-daylight approximation whose stated limitations must be retained. Project-date refinement reference: [NREL Solar Position Algorithm](https://midcdmz.nrel.gov/spa/). ### Source links - [download.geonames.org](https://download.geonames.org/export/dump/MY.zip) - [jkt.kpkt.gov.my](https://jkt.kpkt.gov.my/) - [gml.noaa.gov](https://gml.noaa.gov/grad/solcalc/calcdetails.html) - [midcdmz.nrel.gov](https://midcdmz.nrel.gov/spa/) ## Frequently asked questions ### What does the daylight and building orientation record for Pasir Gudang establish? The daylight and building orientation record for Pasir Gudang establishes a reproducible discovery point at 1.4620, 103.9053 (GeoNames ID 1732722, administrative area 01) and a Malaysia source path. It does not establish a final project value, approval or parcel decision. ### What must be replaced before using this daylight and building orientation workflow for a project in Pasir Gudang? For the daylight and building orientation record in Pasir Gudang, replace the 1.4620, 103.9053 city reference with the surveyed site or parcel, identify the competent local authority, and verify the current documents under Uniform Building By-Laws and state or local-authority adoption. Record the edition, retrieval date, units, assumptions and named checker before relying on the result. --- - Continue in Harth (open this topic in the Harth agent): https://app.harth.build/agent?context=%2Fresources%2Fsolar-data%2Fdaylight-orientation-pasir-gudang-my%2F - View this page in a browser: https://harth.build/resources/solar-data/daylight-orientation-pasir-gudang-my/ - All resources for agents: https://harth.build/llms.txt