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panel/DEPLOYMENT_TIMEZONE_FIX.md

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# Quick Deployment Guide - Timezone Fix
## For Production Server
1. **SSH into your server** where Docker is running
2. **Navigate to project directory**
```bash
cd /path/to/panel
```
3. **Pull latest code** (includes timezone fixes)
```bash
git pull origin main
```
4. **Stop running containers**
```bash
docker-compose -f docker-compose.prod.yml down
```
5. **Rebuild Docker images** (this is critical - it bakes in the timezone configuration)
```bash
docker-compose -f docker-compose.prod.yml build --no-cache
```
6. **Start containers**
```bash
docker-compose -f docker-compose.prod.yml up -d
```
7. **Verify timezone is correct**
```bash
# Check container timezone
docker-compose -f docker-compose.prod.yml exec app date
# Should show Polish time with CEST/CET timezone
# Example output:
# Sat Oct 4 19:45:00 CEST 2025
```
8. **Test the fix**
- Post a new note at a known time (e.g., 19:45)
- Verify it displays the same time (19:45)
- Test both project notes and task notes
## What Changed
### Code Changes
- ✅ Fixed `datetime('now', 'localtime')` in all database queries
- ✅ Updated display formatters to use Europe/Warsaw timezone
- ✅ Fixed note display in components
### Docker Changes (Critical!)
- ✅ Set `ENV TZ=Europe/Warsaw` in Dockerfile
- ✅ Configured system timezone in containers
- ✅ Added TZ environment variable to docker-compose files
## Why Rebuild is Necessary
The timezone configuration is **baked into the Docker image** during build time:
- `ENV TZ=Europe/Warsaw` - Set during image build
- `RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime` - Executed during image build
Just restarting containers (`docker-compose restart`) will **NOT** apply these changes!
## Troubleshooting
### If times are still wrong after deployment:
1. **Verify you rebuilt the images**
```bash
docker images | grep panel
# Check the "CREATED" timestamp - should be recent
```
2. **Check if container has correct timezone**
```bash
docker-compose -f docker-compose.prod.yml exec app date
```
Should show Polish time, not UTC!
3. **Check SQLite is using correct time**
```bash
docker-compose -f docker-compose.prod.yml exec app node -e "const db = require('better-sqlite3')('./data/database.sqlite'); console.log(db.prepare(\"SELECT datetime('now', 'localtime') as time\").get());"
```
Should show current Polish time
4. **Force rebuild if needed**
```bash
docker-compose -f docker-compose.prod.yml down
docker system prune -f
docker-compose -f docker-compose.prod.yml build --no-cache
docker-compose -f docker-compose.prod.yml up -d
```
## Expected Behavior After Fix
### Before Fix (Docker in UTC):
```
User posts note at 10:30 Poland time
→ Docker sees 08:30 UTC as "local time"
→ SQLite stores: 08:30
→ Display shows: 08:30 ❌ (2 hours off!)
```
### After Fix (Docker in Europe/Warsaw):
```
User posts note at 10:30 Poland time
→ Docker sees 10:30 Poland time as "local time"
→ SQLite stores: 10:30
→ Display shows: 10:30 ✅ (correct!)
```
## Important Notes
1. **Old notes**: Notes created before this fix may still show incorrect times (they were stored in UTC)
2. **New notes**: All new notes after deployment will show correct times
3. **Audit logs**: Continue to work correctly (they always used ISO format)
4. **Zero downtime**: Can't achieve - need to stop/rebuild/start containers
## Quick Check Command
After deployment, run this one-liner to verify everything:
```bash
docker-compose -f docker-compose.prod.yml exec app sh -c 'date && node -e "console.log(new Date().toLocaleString(\"pl-PL\"))"'
```
Both outputs should show the same Polish time!