> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tenderly.co/llms.txt
> Use this file to discover all available pages before exploring further.

# 在 Virtual Environments 上使用时间戳

> 了解如何在 Virtual Environments 上访问正确的时间戳并推进时间

对于某些类型的测试，跳过时间是很有用的。这可以通过依赖 Virtual Environments 上可用的 2 个 Admin RPC 方法来实现：**[`evm_setNextBlockTimestamp`](/virtual-environments/admin-rpc/#evm_setnextblocktimestamp)** 和 **[`evm_setNextBlockTimestamp`](/virtual-environments/admin-rpc/#evm_setnextblocktimestamp)**。

## 获取正确的时间

在交易或 `eth_call` 执行期间，当合约内访问 `block.timestamp` 时，其值取决于目标区块（`latest` 或 `pending` 区块）：

* 对于 **`pending` 区块**：`block.timestamp == time.now() + adjustment_offset`。这表示由时间调整方法调整后的当前时间。
* 对于 **`latest` 区块**：`block.timestamp == latest_block.timestamp`。这是最近挖掘区块的时间戳。

`adjustment_offset` 来自时间调整方法：

1. [`evm_setNextBlockTimestamp`](/virtual-environments/admin-rpc/#evm_setnextblocktimestamp)：
   将时间跳到下一个区块的时间戳：`adjustment_offset = timestamp - time.now()`。

2. [`evm_increaseTime`](/virtual-environments/admin-rpc/#evm_increasetime)：
   按相对量向前推进时间。
   `adjustment_offset += increase_value`

## 示例

### 按偏移量增加时间

```bash showLineNumbers theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
VIRTUAL_TESTNET_RPC=https://YOUR-RPC-URL-HERE
curl -s -X POST \
  -H "Content-Type: application/json" \
  --data '{
    "jsonrpc": "2.0",
    "method": "evm_increaseTime",
    "params": ["0xe10"],
    "id": 2
  }' "$VIRTUAL_TESTNET_RPC"
```

### 设置 pending 区块的时间戳

```bash showLineNumbers theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
VIRTUAL_TESTNET_RPC=https://YOUR-RPC-URL-HERE

# Get the current date in Unix timestamp format
current_date=$(date +%s)

# Use evm_setTime to set the block time to today (current timestamp)
curl -s -X POST \
  -H "Content-Type: application/json" \
  --data '{
    "jsonrpc": "2.0",
    "method": "evm_setNextBlockTimestamp",
    "params": ["'"$current_date"'"],
    "id": 3
  }' "$VIRTUAL_TESTNET_RPC"
```