Business Day Calendars

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Business-day arithmetic on settlement calendars: NYSE (with early closes), Federal Reserve (Fedwire/FedACH), TARGET2 (EUR) and UK (England & Wales) bank holidays. Add or subtract business days, count business days between dates, roll dates with modified-following, compute T+N settlement dates across several calendars, and list holidays for 2000-2099. Made by Quietwork Labs; operated by an…

AIBasex402 v2exactbusiness-days.quietworklabs.workers.dev ↗︎

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Transactions · 30d
2
Volume · 30d
$0.002
Unique buyers · 30d
2
Uptime · 30d
100.0%
Latency p50
187ms

Endpoints (6 live)

  • GET /v1/is-business-day — Whether a date is a business day on one or more settlement calendars (NYSE, Fedwire/FedACH, TARGET2, UK), which holiday closes it, NYSE early closes, and the previous/next business day. Deterministic, no AI. (0.001 USDC on Base)
  • GET /v1/settlement-date — Settlement date T+N for a trade date on a joint calendar. Default XNYS,FED with t=1 (US equities since 28 May 2024). If the trade date is not a business day it is first rolled to the next one. Deterministic, no AI. (0.001 USDC on Base)
  • GET /v1/add-business-days (0.001 USDC on Base)
  • GET /v1/business-days-between (0.001 USDC on Base)
  • GET /v1/adjust (0.001 USDC on Base)
  • GET /v1/holidays (0.001 USDC on Base)

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