# RefDateTime

A RefDateTime is a RefSubject specialized over a DateTime value.

## Signatures

```ts
export interface RefDateTime<in out E = never, out R = never> extends RefSubject.RefSubject<DateTime.DateTime, E, R> {
}
```

## Why

Defines date time state with the same current-read, pushed-update, and synchronized-write
contract as RefSubject.

## Ownership and lifetime

RefDateTime is a contract and performs no acquisition. Implementations retain the errors,
services, interruption, and Scope requirements expressed by its members.
