---
title: "TwoDates"
description: "the two dates that every read specifies: the date it was true and the date we knew it; both default to now"
section: concepts
address: /concepts/twodates
contract: 0476e35e6e275db5
---

# TwoDates

the two dates that every read specifies: the date it was true and the date we knew it; both default to now

[figure: TwoDates is a value at none scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | value |
| scope | none |
| key | none |
| store | none |
| family | kernel |



## Fields


| field | type | required | note |
|---|---|---|---|
| `as_true_on` | `time` | yes |  |
| `as_known_on` | `time` | yes |  |



## Routes that use it
No route takes or returns TwoDates directly. The record holds it, and the objects that point at it reach it.