# PEXPIREAT

> Set expiry as Unix ms timestamp.

Use `PEXPIREAT` to schedule a key for automatic deletion at a fixed point in time, given as a Unix timestamp in milliseconds.

It combines the absolute deadline of [`EXPIREAT`](/redis/commands/generic/expireat) with the millisecond precision of [`PEXPIRE`](/redis/commands/generic/pexpire), which is what you need when many keys must expire at exactly the same instant. A timestamp in the past deletes the key right away.

The optional condition works as elsewhere: `NX` only when the key has no expiration, `XX` only when it already has one, `GT` only when the new deadline is later than the current one, and `LT` only when it is earlier.

## Syntax

```redis
PEXPIREAT <key> <unix-time-milliseconds> [NX | XX | GT | LT]
```

## Arguments

| Argument | Required | Repeatable | Description |
| --- | --- | --- | --- |
| `<key>` | Yes | No | Redis key targeted by the command. |
| `<unix-time-milliseconds>` | Yes | No | Expiration time as a Unix timestamp in milliseconds. |
| `(NX \| XX \| GT \| LT)` | No | No | Choose one form: `NX` (only when the key has no expiration); `XX` (only when the key already has one); `GT` (only when the new expiration is later than the current one); `LT` (only when it is earlier). |

## Important points

- `NX` cannot be combined with `XX`, `GT`, or `LT`, and `GT` and `LT` cannot be used together.
- A key with no expiration counts as an infinite one, so `GT` never sets an expiration on such a key and `LT` always does.

## Response

The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.

| Protocol | Reply |
| --- | --- |
| RESP2 | Integer: `1` if the timeout was set, `0` otherwise |
| RESP3 | Integer: `1` if the timeout was set, `0` otherwise |

<Note>
  Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
</Note>

## Examples

TCP examples use the TLS `REDIS_URL` from the Upstash console. REST examples use `UPSTASH_REDIS_REST_URL` and `UPSTASH_REDIS_REST_TOKEN`.

<AccordionGroup>

<Accordion title="Redis CLI" icon="terminal">

```bash
PEXPIREAT my-key 1735689600
```

</Accordion>

<Accordion title="@upstash/redis" icon="node-js" iconType="brands">

```ts
import { Redis } from "@upstash/redis";

const redis = Redis.fromEnv();

await redis.set("mykey", "Hello");
const tenMinutesFromNow = Date.now() + 10 * 60 * 1000;
await redis.pexpireat("mykey", tenMinutesFromNow);
```

</Accordion>

<Accordion title="upstash_redis" icon="python" iconType="brands">

```python
from upstash_redis import Redis

redis = Redis.from_env()
result = redis.pexpireat("my-key", 1735689600)
print(result)
```

</Accordion>

<Accordion title="ioredis" icon="node-js" iconType="brands">

```ts
import Redis from "ioredis";

const redis = new Redis(process.env.REDIS_URL!);
const result = await redis.pexpireat("my-key", "1735689600");
console.log(result);
```

</Accordion>

<Accordion title="node-redis" icon="node-js" iconType="brands">

```ts
import { createClient } from "redis";

const client = await createClient({ url: process.env.REDIS_URL })
  .on("error", console.error)
  .connect();
const result = await client.pExpireAt("my-key", 1735689600);
console.log(result);
```

</Accordion>

<Accordion title="redis-py" icon="python" iconType="brands">

```python
import os
import redis

client = redis.from_url(os.environ["REDIS_URL"])
result = client.pexpireat("my-key", 1735689600)
print(result)
```

</Accordion>

<Accordion title="go-redis" icon="golang" iconType="brands">

```go
package main

import (
    "context"
    "fmt"
    "os"
    "time"

    "github.com/redis/go-redis/v9"
)

func main() {
    opts, err := redis.ParseURL(os.Getenv("REDIS_URL"))
    if err != nil {
        panic(err)
    }
    client := redis.NewClient(opts)
    result, err := client.PExpireAt(context.Background(), "my-key", time.UnixMilli(1735689600)).Result()
    if err != nil {
        panic(err)
    }
    fmt.Println(result)
}
```

</Accordion>

<Accordion title="jedis" icon="java" iconType="brands">

```java
import java.net.URI;

import redis.clients.jedis.Jedis;

try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
  Object result = jedis.pexpireAt("my-key", 1735689600);
  System.out.println(result);
}
```

</Accordion>

<Accordion title="redis-rs" icon="rust" iconType="brands">

```rust
use redis::TypedCommands;

fn main() -> redis::RedisResult<()> {
    let url = std::env::var("REDIS_URL").expect("REDIS_URL is not set");
    let client = redis::Client::open(url)?;
    let mut connection = client.get_connection()?;

    let result = connection.pexpire_at("my-key", 1735689600)?;
    println!("{result:?}");
    Ok(())
}
```

</Accordion>

</AccordionGroup>