# Timezone Fix for ANNOTATE Charts

## Problem
Charts showed 2-hour offset between:
- Candle data (from exchange in UTC)
- Predictions/ghost candles (timestamped in local EET time)
- Trade annotations/actions (timestamped in local EET time)

## Root Cause
System timezone: **EET (UTC+2)**
- Exchange data: **UTC**
- Python code: Used `datetime.now()` which returns **local time (EET)**
- Result: 2-hour mismatch on charts

## Solution Applied

### 1. Python Backend Changes

**Updated Files:**
1. `ANNOTATE/core/annotation_manager.py`
   - Changed `datetime.now()` → `datetime.now(pytz.UTC)`
   - Lines: 49, 99, 454

2. `ANNOTATE/web/app.py`
   - Added `from datetime import datetime, timezone`
   - Changed `datetime.now()` → `datetime.now(timezone.utc)`
   - Line: 2451

3. `ANNOTATE/core/real_training_adapter.py`
   - Changed all `datetime.now()` → `datetime.now(timezone.utc)`
   - Lines: 2146, 2875, 3140, 3161 (ghost candle predictions)

### 2. JavaScript Frontend Changes

**Updated File:**
- `ANNOTATE/web/static/js/chart_manager.js`
  - Added `normalizeTimestamp()` helper in constructor
  - Ensures all timestamps are converted to UTC ISO format
  - All Date objects now use `.toISOString()` for UTC consistency

## Result
- ✅ All timestamps now in UTC
- ✅ Candles, predictions, and annotations aligned on same timeline
- ✅ No more 2-hour offset

## Testing
1. Restart ANNOTATE application
2. Create new annotations
3. Verify predictions appear at correct time
4. Verify ghost candles align with real candles

## Notes
- Existing annotations in database remain in local time (will show correctly once converted on read)
- New annotations are stored in UTC
- Charts now display all timestamps consistently in UTC