tilwhen date engine
com.tilwhen/tilwhenDeterministic date arithmetic with auditable receipts: business days, due dates, holidays.
Tools · 9
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 o…
The date N whole calendar days after a date (exclusive counting: the start date is day 0).
The date N whole calendar days before a date.
Signed whole calendar days from one date to another, midnight to midnight, endpoints exclusive (the gap).
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…
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.
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.
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 hol…
Runs any operation and returns the receipt plus human-readable derivation steps. Accepts the same fields as the other tools, discriminated by op.
Resources · 3
Counting convention, business-day semantics, and citation guidance
tilwhen://methodology
Jurisdiction ids, labels, sources, and declared-data coverage
tilwhen://jurisdictions
What this server deliberately does not do
tilwhen://limitations
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How to use
Add to your Claude Desktop / Cursor / Cline MCP config:
{
"mcpServers": {
"tilwhen_date_engine": {
"url": "https://mcp.tilwhen.com/mcp",
"transport": "streamable-http"
}
}
}