Alert Rule Schedules

### Problem Statement

Currently, there is no way to evaluate an alert rule based on a given schedule or make decisions within the alert rule based on a timestamp variable.

We want the ability for alert rules to be considered based on a given schedule or at minimum the ability to inspect a timestamp variable within the alert rule and make a decision based on the outcome.

i.e. `if timestamp > 22:00 and timestamp < 06:00 do X`

### Solution Brainstorm

_No response_

### Product Area

Unknown