www.rfc-editor.org/rfc/rfc7808">Time Zone
Data Distribution Service</a> (TZDIST, Internet <abbr>RFC</abbr> 7808)
is associated with
<a href="https://www.rfc-editor.org/rfc/rfc7809">CalDAV</a>
(Internet <abbr>RFC</abbr> 7809), a calendar access protocol for
transferring time zone data by reference.
<a href="https://devguide.calconnect.org/Time-Zones/TZDS/">TZDIST
implementations</a> are available.</li>
<li>The <a href="https://www.rfc-editor.org/rfc/rfc5545">iCalendar format</a>
(Internet <abbr>RFC</abbr> 54