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alpaca-time

alpaca-time is the workspace crate for New York time, US trading-calendar, and expiration-date semantics shared across the Rust SDK surface.

Main Modules​

  • clock
  • calendar
  • session
  • expiration
  • range
  • display

Typical Uses​

  • Normalize RFC3339 UTC timestamps into canonical New York timestamps
  • Compare date-only and timestamp values without inventing intraday ordering
  • Determine trading days, market sessions, week ranges, and expiration windows

Optional Companion​

An optional workspace TypeScript companion exists under packages/alpaca-time. It is a plus feature, not the primary published system surface.

The TypeScript package exports:

  • namespace exports: clock, calendar, session, expiration, range, display, browser
  • shared types from types
  • TimeError

Package metadata:

  • private: true
  • @alpaca/time (1.10.4)
  • exports only the package root ("." => "./src/index.ts").

Not Included​

  • Alpaca HTTP transport or credentials
  • option contracts, payoff, or pricing math
  • cache orchestration or background scheduling