Sunrise, sunset, solar noon, day length and the sun's elevation at noon for any
Sunrise, sunset, solar noon, day length and the sun's elevation at noon for any latitude, longitude and date, computed with the NOAA solar algorithm (accurate to about a minute; times in UTC; polar day and night handled). Use it for solar panel and lighting schedules, photography, outdoor work planning and daylight-dependent automations.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
290 msmedian answer time
$0.001listed price per call
$0.001price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://opendata402.com/v1/sun
| Category | Everything else |
|---|---|
| Provider host | opendata402.com |
| Networks | eip155:137, eip155:42161, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.001 | 290 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"date": "2026-12-21",
"lat": "52.3676",
"lon": "4.9041"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"date": {
"description": "YYYY-MM-DD (default today, UTC).",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"lat": {
"description": "Latitude -90..90.",
"pattern": "^-?\\d{1,2}(\\.\\d+)?$",
"type": "string"
},
"lon": {
"description": "Longitude -180..180.",
"pattern": "^-?\\d{1,3}(\\.\\d+)?$",
"type": "string"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}