FOR REVIEW: Working with Time and Time Zones

An updated version of Working with Time and Time Zones is out for wide review. We are looking for comments by Thursday, 23 January 2025.

Working with time values can be the source of confusion for developers and users because of the complexity inherent in calendars. Local changes, such as daylights savings (summer) time can interfere with the orderly progression or comparison of values and users in different locations can see the wrong date or time displayed, especially if the developer doesn’t understand how to manage the information appropriately. This document contains guidelines and best practices for working with time values in applications and document formats on the Web, as well as an explanation of the core concepts.

To comment, please file issues on our github repo.