mcp server
tilwhen date engine
Deterministic date arithmetic with auditable receipts: business days, due dates, holidays.
Description as published by the maintainer. Source
- version 1.0.0
- archived
archived — The linked repository returns 404. It was deleted, renamed or made private.
What this server can do
9 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
add_days(tz, date, days)- The date N whole calendar days after a date (exclusive counting: the start date is day 0). Required: days.
business_days(to, tz, date, days, from, workweek, jurisdiction, customHolidays)- Span mode (from+to): business days between two dates, exclusive of the start day, inclusive of the end day. Add mode (days, optional date): the date N business days away. Optional holiday jurisdiction or custom calendar, and a selectable working week.
days_between(to, tz, from)- Signed whole calendar days from one date to another, midnight to midnight, endpoints exclusive (the gap). Required: from, to.
explain(op, to, tz, net, date, days, from, roll, year, event, weekday, workweek, invoiceDate, jurisdiction, customHolidays)- Runs any operation and returns the receipt plus human-readable derivation steps. Accepts the same fields as the other tools, discriminated by op. Required: op.
holidays(year, jurisdiction)- Observed public holidays with the nominal (legal) date and status: rule (statutory) or declared (officially declared for that year). Declared-only holidays are omitted for undeclared years, with a holiday_data_incomplete warning. Required: jurisdiction, year.
invoice_due(tz, net, roll, workweek, invoiceDate, jurisdiction, customHolidays)- Due date for Net-N payment terms (calendar days, invoice date = day 0). Optional roll-forward past weekends and, with a jurisdiction or custom calendar, public holidays. Required: net.
next_occurrence(tz, from, event, weekday)- The next occurrence strictly after the base date (default today) of either a tracked event slug (e.g. "christmas") or a weekday (0 = Sunday .. 6 = Saturday). Provide exactly one of event/weekday.
parse_date_query(q, tz, locale)- Parses queries like "90 business days from today in uganda" into a normalized operation, answers it, and returns the auditable receipt. Ambiguous dates (03/04/2027) return needsClarification instead of a guess. Required: q.
subtract_days(tz, date, days)- The date N whole calendar days before a date. Required: days.
Last successful function declaration observed on . Source: https://mcp.tilwhen.com/mcp. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://mcp.tilwhen.com/mcp.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 1.0.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-26 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-26 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| repository status | not_found | GitHub returned 404 for the repository the maintainer listed. The project was deleted, renamed or made private, so the listing points at nothing. | as of fetch | GitHub | |
| mcp tools declared | 9 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | mcp.tilwhen.com | |
| mcp endpoint status | ok | The server listed 9 functions when asked. | as of probe | mcp.tilwhen.com |
Where to get it
This record as data
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