<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">dating systems</topic></authority><related type="narrower"><topic>[dating systems by specific type]</topic></related><related type="narrower"><topic>[dating systems by general type]</topic></related><related type="other"><topic>dating</topic></related><related type="broader"><topic>dates and dating systems</topic></related><variant type="other"><topic>date systems</topic></variant><variant type="other"><topic>dating system</topic></variant><variant type="other"><topic>systems, dating</topic></variant> <note xml:lang="en"><![CDATA[ Conceptual systems for reckoning the passage of time in terms of days and years, often also with months or other such divisions. For processes by which age is determined and translated to estimated dates of creation or another event, use "dating (measuring processes)." ]]></note></mads>