# Time Anchoring for Offline Environments

## Module
AirGap

## Status
IMPLEMENTED

## Description
Time anchoring module with anchor loader, token parser, staleness calculator, and sealed startup validation for air-gapped environments. Includes HLC (Hybrid Logical Clock) merge services for multi-node sync.

## Implementation Details
- **Time module**: `src/AirGap/StellaOps.AirGap.Time/` -- dedicated time anchoring service
- **Controllers**: `src/AirGap/StellaOps.AirGap.Time/Controllers/` -- time anchor API controllers
- **Services**: `src/AirGap/StellaOps.AirGap.Time/Services/` -- HLC merge, staleness calculation, anchor loading
- **Parsing**: `src/AirGap/StellaOps.AirGap.Time/Parsing/` -- time anchor token parsing
- **Models**: `src/AirGap/StellaOps.AirGap.Time/Models/` -- time anchor data models
- **Stores**: `src/AirGap/StellaOps.AirGap.Time/Stores/` -- time anchor state stores
- **Config**: `src/AirGap/StellaOps.AirGap.Time/Config/` -- time anchor configuration
- **Hooks**: `src/AirGap/StellaOps.AirGap.Time/Hooks/` -- time-related event hooks
- **Health**: `src/AirGap/StellaOps.AirGap.Time/Health/` -- time health checks
- **Fixtures**: `src/AirGap/StellaOps.AirGap.Time/fixtures/` -- deterministic time test data
- **Tests**: `src/AirGap/__Tests/StellaOps.AirGap.Time.Tests/`
- **Attestor timestamping**: `src/Attestor/__Libraries/StellaOps.Attestor.Timestamping/TimeCorrelationValidator.Validate.cs`, `TimeCorrelationStatus.cs`
- **Source**: Feature matrix scan

## E2E Test Plan
- [ ] Verify time anchor loading from sealed bundles
- [ ] Test token parsing extracts correct anchor timestamps
- [ ] Test staleness calculator produces correct durations
- [ ] Verify HLC merge service handles multi-node sync correctly
- [ ] Test health checks report time anchor status