Definition

Calendar date which is an estimate whose value is asserted to be possibly correct.

Source: ISO 8601-2:2019: Date and time -- Representations for information interchange -- Part 2: Extensions (Section 3.1.1.1).

Introduction

Approximate dates are the equivalent to probable dates See the Canadian Rules for Archival Description (Rule 1.4B5).

Related terms

Uncertain date

Date with unspecified part