# Rebalance Window & Cooldown

The Node implements a time-based control system that determines when rebalancing operations can occur:

```solidity
uint64 public rebalanceCooldown = 23 hours;  // Default
uint64 public rebalanceWindow = 1 hours;     // Default
uint64 public lastRebalance;
```

### Purpose

* Enables Node owners to optimize transaction costs by batching investment and withdrawal transactions 
* Window provides predictable timeframe for operations
* Rebalancer has discretion on when to start new window
* Owner can adjust periods based on strategy needs

### Permissions

* The Node Owner has exclusive permission to set rebalance cooldown & duration
* Whitelisted Rebalancers have exclusive rights to call `startRebalance()`

### Configuration

```solidity
// Only owner can modify
function setRebalanceCooldown(uint64 newRebalanceCooldown)
function setRebalanceWindow(uint64 newRebalanceWindow)
```

### Timing Rules

* Must wait `rebalanceCooldown` between rebalance windows
* Rebalancing actions only valid for `rebalanceWindow` duration
* Window starts when rebalancer calls `startRebalance()`

### Modifiers

```solidity
modifier onlyWhenRebalancing()     // Must be within window
modifier onlyWhenNotRebalancing()  // Must be outside window
```

###