12306

---
name: "12306"
description: Query China Railway 12306 for train schedules, remaining tickets,
  and station info. Use when user asks about train/高铁/火车 tickets, schedules, or
  availability within China.
---


# 12306 Train Query

Query train schedules and remaining tickets from China Railway 12306. Output is an HTML file.

## Query Tickets

```bash
node {baseDir}/scripts/query.mjs <from> <to> [options]
```

The command prints the output file path to stdout and query info to stderr.

### Examples

```bash
# All trains from Beijing to Shanghai (defaults to today)
node {baseDir}/scripts/query.mjs 北京 上海

# Specify a date
node {baseDir}/scripts/query.mjs 北京 上海 -d 2026-03-01

# Only high-speed trains (G)
node {baseDir}/scripts/query.mjs 北京 上海 -t G

# Morning departures, 2h max, with second class available
node {baseDir}/scripts/query.mjs 上海 杭州 -t G --depart 06:00-12:00 --max-duration 1h --seat ze

# Only bookable trains arriving before 6pm
node {baseDir}/scripts/query.mjs 深圳 长沙 --available --arrive -18:00

# Custom output path
node {baseDir}/scripts/query.mjs 广州 武汉 -o /tmp/tickets.html

# JSON output (to stdout)
node {baseDir}/scripts/query.mjs 广州 武汉 --json
```

### Options

- `-d, --date <YYYY-MM-DD>`: Travel date (default: today)
- `-t, --type <G|D|Z|T|K>`: Filter train types (combinable, e.g. `GD`)
- `--depart <HH:MM-HH:MM>`: Depart time range (e.g. `08:00-12:00`, `18:00-`)
- `--arrive <HH:MM-HH:MM>`: Arrive time range (e.g. `-18:00`, `14:00-20:00`)
- `--max-duration <duration>`: Max travel time (e.g. `2h`, `90m`, `1h30m`)
- `--available`: Only show bookable trains
- `--seat <types>`: Only show trains with tickets for given seat types (comma-separated: `swz,zy,ze,rw,dw,yw,yz,wz`)
- `-o, --output <path>`: Output HTML file path (default: `{baseDir}/data/<from>-<to>-<date>.html`)
- `--json`: Output raw JSON to stdout

### Output Columns

| Column | Meaning |
|--------|---------|
| 商务/特等 | Business class / Premium (swz) |
| 一等座 | First class (zy) |
| 二等座 | Second class (ze) |
| 软卧/动卧 | Soft sleeper / Bullet sleeper (rw/dw) |
| 硬卧 | Hard sleeper (yw) |
| 硬座 | Hard seat (yz) |
| 无座 | Standing (wz) |

Values: number = remaining seats, `有` = available (qty unknown), `—` = not applicable

## Station Lookup

```bash
node {baseDir}/scripts/stations.mjs 杭州
node {baseDir}/scripts/stations.mjs 香港西九龙
```

## Notes

- Data comes directly from 12306 official API (no key needed)
- Station data is cached for 7 days in `{baseDir}/data/stations.json`
- Supports city names (resolves to main station) or exact station names
- Works for all train types: G (高铁), D (动车), Z (直达), T (特快), K (快速)