diff --git a/reference/datetime/timezones.xml b/reference/datetime/timezones.xml
index ce5080a3c3..b693d77a63 100644
--- a/reference/datetime/timezones.xml
+++ b/reference/datetime/timezones.xml
@@ -8,7 +8,7 @@
 
  <note>
   <simpara>
-   &date.timezone.dbversion; 2020.4.
+   &date.timezone.dbversion; 2021.1.
   </simpara>
  </note>
 
@@ -553,19 +553,19 @@
       <entry>Australia/Adelaide</entry>
       <entry>Australia/Brisbane</entry>
       <entry>Australia/Broken_Hill</entry>
-      <entry>Australia/Currie</entry>
+      <entry>Australia/Darwin</entry>
      </row>
      <row>
-      <entry>Australia/Darwin</entry>
       <entry>Australia/Eucla</entry>
       <entry>Australia/Hobart</entry>
       <entry>Australia/Lindeman</entry>
+      <entry>Australia/Lord_Howe</entry>
      </row>
      <row>
-      <entry>Australia/Lord_Howe</entry>
       <entry>Australia/Melbourne</entry>
       <entry>Australia/Perth</entry>
       <entry>Australia/Sydney</entry>
+      <entry></entry>
      </row>
     </tbody>
    </tgroup>
@@ -849,199 +849,199 @@
       <entry>Atlantic/Jan_Mayen</entry>
       <entry>Australia/ACT</entry>
       <entry>Australia/Canberra</entry>
-      <entry>Australia/LHI</entry>
+      <entry>Australia/Currie</entry>
      </row>
      <row>
+      <entry>Australia/LHI</entry>
       <entry>Australia/North</entry>
       <entry>Australia/NSW</entry>
       <entry>Australia/Queensland</entry>
-      <entry>Australia/South</entry>
      </row>
      <row>
+      <entry>Australia/South</entry>
       <entry>Australia/Tasmania</entry>
       <entry>Australia/Victoria</entry>
       <entry>Australia/West</entry>
-      <entry>Australia/Yancowinna</entry>
      </row>
      <row>
+      <entry>Australia/Yancowinna</entry>
       <entry>Brazil/Acre</entry>
       <entry>Brazil/DeNoronha</entry>
       <entry>Brazil/East</entry>
-      <entry>Brazil/West</entry>
      </row>
      <row>
+      <entry>Brazil/West</entry>
       <entry>Canada/Atlantic</entry>
       <entry>Canada/Central</entry>
       <entry>Canada/Eastern</entry>
-      <entry>Canada/Mountain</entry>
      </row>
      <row>
+      <entry>Canada/Mountain</entry>
       <entry>Canada/Newfoundland</entry>
       <entry>Canada/Pacific</entry>
       <entry>Canada/Saskatchewan</entry>
-      <entry>Canada/Yukon</entry>
      </row>
      <row>
+      <entry>Canada/Yukon</entry>
       <entry>CET</entry>
       <entry>Chile/Continental</entry>
       <entry>Chile/EasterIsland</entry>
-      <entry>CST6CDT</entry>
      </row>
      <row>
+      <entry>CST6CDT</entry>
       <entry>Cuba</entry>
       <entry>EET</entry>
       <entry>Egypt</entry>
-      <entry>Eire</entry>
      </row>
      <row>
+      <entry>Eire</entry>
       <entry>EST</entry>
       <entry>EST5EDT</entry>
       <entry>Etc/GMT</entry>
-      <entry>Etc/GMT+0</entry>
      </row>
      <row>
+      <entry>Etc/GMT+0</entry>
       <entry>Etc/GMT+1</entry>
       <entry>Etc/GMT+10</entry>
       <entry>Etc/GMT+11</entry>
-      <entry>Etc/GMT+12</entry>
      </row>
      <row>
+      <entry>Etc/GMT+12</entry>
       <entry>Etc/GMT+2</entry>
       <entry>Etc/GMT+3</entry>
       <entry>Etc/GMT+4</entry>
-      <entry>Etc/GMT+5</entry>
      </row>
      <row>
+      <entry>Etc/GMT+5</entry>
       <entry>Etc/GMT+6</entry>
       <entry>Etc/GMT+7</entry>
       <entry>Etc/GMT+8</entry>
-      <entry>Etc/GMT+9</entry>
      </row>
      <row>
+      <entry>Etc/GMT+9</entry>
       <entry>Etc/GMT-0</entry>
       <entry>Etc/GMT-1</entry>
       <entry>Etc/GMT-10</entry>
-      <entry>Etc/GMT-11</entry>
      </row>
      <row>
+      <entry>Etc/GMT-11</entry>
       <entry>Etc/GMT-12</entry>
       <entry>Etc/GMT-13</entry>
       <entry>Etc/GMT-14</entry>
-      <entry>Etc/GMT-2</entry>
      </row>
      <row>
+      <entry>Etc/GMT-2</entry>
       <entry>Etc/GMT-3</entry>
       <entry>Etc/GMT-4</entry>
       <entry>Etc/GMT-5</entry>
-      <entry>Etc/GMT-6</entry>
      </row>
      <row>
+      <entry>Etc/GMT-6</entry>
       <entry>Etc/GMT-7</entry>
       <entry>Etc/GMT-8</entry>
       <entry>Etc/GMT-9</entry>
-      <entry>Etc/GMT0</entry>
      </row>
      <row>
+      <entry>Etc/GMT0</entry>
       <entry>Etc/Greenwich</entry>
       <entry>Etc/UCT</entry>
       <entry>Etc/Universal</entry>
-      <entry>Etc/UTC</entry>
      </row>
      <row>
+      <entry>Etc/UTC</entry>
       <entry>Etc/Zulu</entry>
       <entry>Europe/Belfast</entry>
       <entry>Europe/Nicosia</entry>
-      <entry>Europe/Tiraspol</entry>
      </row>
      <row>
+      <entry>Europe/Tiraspol</entry>
       <entry>Factory</entry>
       <entry>GB</entry>
       <entry>GB-Eire</entry>
-      <entry>GMT</entry>
      </row>
      <row>
+      <entry>GMT</entry>
       <entry>GMT+0</entry>
       <entry>GMT-0</entry>
       <entry>GMT0</entry>
-      <entry>Greenwich</entry>
      </row>
      <row>
+      <entry>Greenwich</entry>
       <entry>Hongkong</entry>
       <entry>HST</entry>
       <entry>Iceland</entry>
-      <entry>Iran</entry>
      </row>
      <row>
+      <entry>Iran</entry>
       <entry>Israel</entry>
       <entry>Jamaica</entry>
       <entry>Japan</entry>
-      <entry>Kwajalein</entry>
      </row>
      <row>
+      <entry>Kwajalein</entry>
       <entry>Libya</entry>
       <entry>MET</entry>
       <entry>Mexico/BajaNorte</entry>
-      <entry>Mexico/BajaSur</entry>
      </row>
      <row>
+      <entry>Mexico/BajaSur</entry>
       <entry>Mexico/General</entry>
       <entry>MST</entry>
       <entry>MST7MDT</entry>
-      <entry>Navajo</entry>
      </row>
      <row>
+      <entry>Navajo</entry>
       <entry>NZ</entry>
       <entry>NZ-CHAT</entry>
       <entry>Pacific/Johnston</entry>
-      <entry>Pacific/Ponape</entry>
      </row>
      <row>
+      <entry>Pacific/Ponape</entry>
       <entry>Pacific/Samoa</entry>
       <entry>Pacific/Truk</entry>
       <entry>Pacific/Yap</entry>
-      <entry>Poland</entry>
      </row>
      <row>
+      <entry>Poland</entry>
       <entry>Portugal</entry>
       <entry>PRC</entry>
       <entry>PST8PDT</entry>
-      <entry>ROC</entry>
      </row>
      <row>
+      <entry>ROC</entry>
       <entry>ROK</entry>
       <entry>Singapore</entry>
       <entry>Turkey</entry>
-      <entry>UCT</entry>
      </row>
      <row>
+      <entry>UCT</entry>
       <entry>Universal</entry>
       <entry>US/Alaska</entry>
       <entry>US/Aleutian</entry>
-      <entry>US/Arizona</entry>
      </row>
      <row>
+      <entry>US/Arizona</entry>
       <entry>US/Central</entry>
       <entry>US/East-Indiana</entry>
       <entry>US/Eastern</entry>
-      <entry>US/Hawaii</entry>
      </row>
      <row>
+      <entry>US/Hawaii</entry>
       <entry>US/Indiana-Starke</entry>
       <entry>US/Michigan</entry>
       <entry>US/Mountain</entry>
-      <entry>US/Pacific</entry>
      </row>
      <row>
+      <entry>US/Pacific</entry>
       <entry>US/Samoa</entry>
       <entry>UTC</entry>
       <entry>W-SU</entry>
-      <entry>WET</entry>
      </row>
      <row>
+      <entry>WET</entry>
       <entry>Zulu</entry>
       <entry></entry>
       <entry></entry>
-      <entry></entry>
      </row>
     </tbody>
    </tgroup>