diff --git a/ChangeLog b/ChangeLog
index f0bbd266..3927a8e2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -22835,3 +22835,6 @@
 	* Add missing files to EXTRA_DIST in versions.
 2021-12-22 Fred Gleason <fredg@paravelsystems.com>
 	* Added the ability to filter the library by two scheduler codes.
+2021-12-22 Fred Gleason <fredg@paravelsystems.com>
+	* Added '%z', '%:z' and '%::z' patterns to the set of filepath
+	wildcards.
diff --git a/docs/opsguide/filepath_wildcards.xml b/docs/opsguide/filepath_wildcards.xml
index 3be63e70..3c056762 100644
--- a/docs/opsguide/filepath_wildcards.xml
+++ b/docs/opsguide/filepath_wildcards.xml
@@ -1,8 +1,8 @@
 <appendix xmlns="http://docbook.org/ns/docbook" xml:id="appendix.filepath_wildcards">
   <title>Filepath Wildcards</title>
   <para>
-    Filepath wildcards can be used in most places in RDAdmin where a filename
-    is required.
+    Filepath wildcards can be used in most places in RDAdmin and RDCatch 
+    where a filename or URL is required.
   </para>
   <sect1 xml:id="sect.filepath_wildcards.definition">
     <title>Definition</title>
@@ -473,7 +473,23 @@
 	      <term><userinput>z</userinput></term>
 	      <listitem>
 		<para>
-		  [unassigned]
+		  -HHMM numeric timezone (e.g. -0400)
+		</para>
+	      </listitem>
+	    </varlistentry>
+	    <varlistentry>
+	      <term><userinput>:z</userinput></term>
+	      <listitem>
+		<para>
+		  -HH:MM numeric timezone (e.g. -04:00)
+		</para>
+	      </listitem>
+	    </varlistentry>
+	    <varlistentry>
+	      <term><userinput>::z</userinput></term>
+	      <listitem>
+		<para>
+		  -HH:MM:SS numeric timezone (e.g. -04:00:00)
 		</para>
 	      </listitem>
 	    </varlistentry>
@@ -501,7 +517,8 @@
   <sect1 xml:id="sect.filepath_wildcards.examples">
     <title>Examples</title>
     <para>
-      For the date time of February 3rd, 2017 at 2:34:26 PM:
+      For the date time of February 3rd, 2017 at 2:34:26 PM, in the
+      <code>America/New_York</code> timezone:
     </para>
     <variablelist>
       <varlistentry>
@@ -640,6 +657,22 @@
 	  </para>
 	</listitem>
       </varlistentry>
+      <varlistentry>
+	<term><userinput>%Y-%m-%dT%H:%M:%S</userinput></term>
+	<listitem>
+	  <para>
+	    <code>2017-02-03T14:34:26</code>
+	  </para>
+	</listitem>
+      </varlistentry>
+      <varlistentry>
+	<term><userinput>%Y-%m-%dT%H:%M:%S%:z</userinput></term>
+	<listitem>
+	  <para>
+	    <code>2017-02-03T14:34:26-05:00</code>
+	  </para>
+	</listitem>
+      </varlistentry>
     </variablelist>
   </sect1>
 </appendix>
diff --git a/lib/rdconf.h b/lib/rdconf.h
index 4a5eb0a1..d8e3aaf4 100644
--- a/lib/rdconf.h
+++ b/lib/rdconf.h
@@ -101,7 +101,6 @@ QDateTime RDLocalToUtc(const QDateTime &localdatetime);
 QTime RDLocalToUtc(const QTime &localtime);
 QDateTime RDUtcToLocal(const QDateTime &gmtdatetime);
 QTime RDUtcToLocal(const QTime &gmttime);
-//int RDTimeZoneOffset();
 QColor RDGetTextColor(const QColor &background_color);
 bool RDProcessActive(const QString &cmd);
 bool RDProcessActive(const QStringList &cmds);
diff --git a/lib/rddatedecode.cpp b/lib/rddatedecode.cpp
index d22acd06..70d7fb31 100644
--- a/lib/rddatedecode.cpp
+++ b/lib/rddatedecode.cpp
@@ -20,7 +20,44 @@
 
 #include <stdio.h>
 
-#include <rddatedecode.h>
+#include "rdconf.h"
+#include "rddatedecode.h"
+#include "rddatetime.h"
+
+QString __RDDateCode_TZFormat(int level)
+{
+  int offset=RDTimeZoneOffset();
+  int hours=abs(offset/3600);
+  int minutes=(abs(offset)-3600*hours)/60;
+  int seconds=abs(offset)-3600*hours-60*minutes;
+  QString ret;
+
+  switch(level) {
+  case 0:
+    ret=QString::asprintf("%02d",hours).left(2)+
+      QString::asprintf("%02d",minutes).left(2);
+    break;
+
+  case 1:
+    ret=QString::asprintf("%02d",hours).left(2)+":"+
+      QString::asprintf("%02d",minutes).left(2);
+    break;
+
+  case 2:
+    ret=QString::asprintf("%02d",hours).left(2)+":"+
+      QString::asprintf("%02d",minutes).left(2)+":"+
+      QString::asprintf("%02d",seconds).left(2);
+    break;
+  }
+  if(offset<0) {
+    ret="+"+ret;
+  }
+  else {
+    ret="-"+ret;
+  }
+
+  return ret;
+}
 
 QString RDDateDecode(QString str,const QDate &date,RDStation *station,
 		     RDConfig *config,const QString &svcname)
@@ -453,6 +490,24 @@ QString RDDateTimeDecode(QString str,const QDateTime &datetime,
 	field=QString::asprintf("%04d",dt.date().year());
 	break;
 
+      case 'z':   // +hhmm numeric time zone (e.g., -0400)
+	field=__RDDateCode_TZFormat(0);
+	break;
+
+      case ':':   // Extended numeric timezones
+	if((str.length()>(i+1))&&(str.at(i+1)==QChar('z'))) {
+	  field=__RDDateCode_TZFormat(1);
+	  i++;
+	}
+	else {
+	  if((str.length()>(i+2))&&(str.at(i+1)==QChar(':'))&&
+	     (str.at(i+2)==QChar('z'))) {
+	    field=__RDDateCode_TZFormat(2);
+	    i+=2;
+	  }
+	}
+	break;
+
       case '%':   // Literal '%'
 	field=QString("%");
 	break;