Season Dates Skill

Overview

Weather Seasons works by calculating the dates of the solstice and equinox for a given year. It uses advanced algorithms to determine the dates of the solstice and equinox and returns the dates.

Live Test Season Dates Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as SeasonDatesSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

Tool call

{
  "name": "SeasonDatesSkill",
  "arguments": {}
}

Connecting

One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervekit": {
      "url": "https://api.vervekit.com/v1/mcp"
    }
  }
}

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

Argument	Type	Description
`year`Optional	integer	The year to get the dates of the solstice and equinox default 2025 · range 1900–2100

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

Result

{
  "status": "ok",
  "error": null,
  "data": {
    "year": 2024,
    "timezone": "UTC",
    "march_equinox": "2024-03-20 03:06:24",
    "june_solstice": "2024-06-20 20:50:58",
    "september_equinox": "2024-09-22 12:43:55",
    "december_solstice": "2024-12-21 09:20:18"
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Field	Type	Example	Description
`year`	number	`2024`	The year for solstice and equinox dates requested
`timezone`	string	`UTC`	Timezone reference for all seasonal date calculations
`march_equinox`	string	`2024-03-20 03:06:24`	Spring equinox date and time for northern hemisphere
`june_solstice`	string	`2024-06-20 20:50:58`	Summer solstice date and time for northern hemisphere
`september_equinox`	string	`2024-09-22 12:43:55`	Fall equinox date and time for northern hemisphere
`december_solstice`	string	`2024-12-21 09:20:18`	Winter solstice date and time for northern hemisphere

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

Status	What it means
`400` / `422`	The arguments did not validate. The message names the offending one.
`401`	The OAuth session is invalid or expired — reconnect the server.
`403`	Blocked by a key restriction or an IP allow-list. Never a bad identity.
`404`	This skill is not part of VerveKit. Check the catalog.
`429`	Out of credits, or a brief rate limit. The message tells them apart.

A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Astronomical Calendar Events: Calendar apps populate official seasonal change markers across subscriber devices using exact equinox and solstice timestamps for upcoming years.
Agricultural Planting Schedules: To calculate frost risk windows and growing cycles, farming platforms align crop milestones with astronomical spring and fall equinox timings.
Seasonal Storefront Scheduling: Trigger seasonal storefront themes, banners, and promotional product categories automatically when astronomical solstice or equinox dates arrive.
Educational Planetarium Displays: Science museums query seasonal transition timestamps to synchronize interactive planetary orbit models with historical and future astronomical events.

Other ways to use Season Dates Skill

Set up Season Dates Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.

Call it as a REST APIOne HTTPS endpoint and an x-api-key header, with SDKs for Node, Python and .NET.APIVerve →Reference →

Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.VerveSheets →Reference →

Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.VerveContext →Reference →