diff --git a/application/controllers/Cabrillo.php b/application/controllers/Cabrillo.php
index 734a74c2b..73264612b 100644
--- a/application/controllers/Cabrillo.php
+++ b/application/controllers/Cabrillo.php
@@ -117,6 +117,7 @@ class Cabrillo extends CI_Controller {
 			$data['categorypower'] = $this->security->xss_clean($this->input->post('categorypower'));
 			$data['categorystation'] = $this->security->xss_clean($this->input->post('categorystation'));
 			$data['categorytransmitter'] = $this->security->xss_clean($this->input->post('categorytransmitter'));
+			$data['categorytime'] = $this->security->xss_clean($this->input->post('categorytime'));
 			$data['categoryoverlay'] = $this->security->xss_clean($this->input->post('categoryoverlay'));
 			$data['operators'] = $this->security->xss_clean($this->input->post('operators'));
 			$data['club'] = $this->security->xss_clean($this->input->post('club'));
diff --git a/application/libraries/Cabrilloformat.php b/application/libraries/Cabrilloformat.php
index 2336b5926..cf1e01d9f 100644
--- a/application/libraries/Cabrilloformat.php
+++ b/application/libraries/Cabrilloformat.php
@@ -5,7 +5,7 @@ class Cabrilloformat {
 
    public function header($contest_id, $callsign, $claimed_score, 
       $operators, $club, $location, $name, $address, $addresscity, $addressstateprovince, $addresspostalcode, $addresscountry, $soapbox, $gridlocator, 
-      $categoryoverlay, $categorytransmitter, $categorystation, $categorypower, $categorymode, $categoryband, $categoryassisted, $categoryoperator, $email) {
+      $categoryoverlay, $categorytransmitter, $categorytime, $categorystation, $categorypower, $categorymode, $categoryband, $categoryassisted, $categoryoperator, $email) {
       $cab_header = "";
       $cab_header .= "START-OF-LOG: 3.0"."\r\n";
       $cab_header .= "CONTEST: ".$contest_id."\r\n";
@@ -32,6 +32,7 @@ class Cabrilloformat {
       $cab_header .= "CATEGORY-POWER: ".$categorypower."\r\n";
       $cab_header .= "CATEGORY-STATION: ".$categorystation."\r\n";
       $cab_header .= "CATEGORY-TRANSMITTER: ".$categorytransmitter."\r\n";
+      $cab_header .= "CATEGORY-TIME: ".$categorytime."\r\n";
       $cab_header .= "CATEGORY-OVERLAY: ".$categoryoverlay."\r\n";
 
       $cab_header .= "NAME: ".$name."\r\n";
diff --git a/application/views/cabrillo/export.php b/application/views/cabrillo/export.php
index b36c5ffce..5e8d6af92 100644
--- a/application/views/cabrillo/export.php
+++ b/application/views/cabrillo/export.php
@@ -7,7 +7,7 @@ $CI->load->library('Cabrilloformat');
 
 echo $CI->cabrilloformat->header($contest_id, $callsign, $claimed_score, 
 	$operators, $club, $location, $name, $address, $addresscity, $addressstateprovince, $addresspostalcode, $addresscountry, $soapbox, $gridlocator, 
-	$categoryoverlay, $categorytransmitter, $categorystation, $categorypower, $categorymode, $categoryband, $categoryassisted, $categoryoperator, $email);
+	$categoryoverlay, $categorytransmitter, $categorytime, $categorystation, $categorypower, $categorymode, $categoryband, $categoryassisted, $categoryoperator, $email);
 foreach ($qsos->result() as $row) {
 	echo $CI->cabrilloformat->qso($row);
 }
diff --git a/application/views/cabrillo/index.php b/application/views/cabrillo/index.php
index 04d0bef85..0ea33531e 100644
--- a/application/views/cabrillo/index.php
+++ b/application/views/cabrillo/index.php
@@ -139,6 +139,15 @@
 						<option value="SWL">SWL</option>
 					</select>
 				</div>
+				<div hidden="true" class="mb-3 d-flex align-items-center row additionalinfo">
+					<div class="col-md-3 control-label" for="categorytime"><?= __("Category Time") ?>: </div>
+					<select class="form-select my-1 me-sm-2 col-md-4 w-auto" id="categorytime" name="categorytime">
+						<option value="6-HOURS"><?= sprintf(__("%d Hours"), 6); ?></option>
+						<option value="8-HOURS"><?= sprintf(__("%d Hours"), 8); ?></option>
+						<option value="12-HOURS"><?= sprintf(__("%d Hours"), 12); ?></option>
+						<option value="24-HOURS"><?= sprintf(__("%d Hours"), 24); ?></option>
+					</select>
+				</div>
 				<div hidden="true" class="mb-3 d-flex align-items-center row additionalinfo">
 					<div class="col-md-3 control-label" for="categoryoverlay"><?= __("Category Overlay") ?>: </div>
 					<select class="form-select my-1 me-sm-2 col-md-4 w-auto" id="categoryoverlay" name="categoryoverlay">