diff --git a/application/controllers/Logbookadvanced.php b/application/controllers/Logbookadvanced.php
index 1ace1b340..03750cd2b 100644
--- a/application/controllers/Logbookadvanced.php
+++ b/application/controllers/Logbookadvanced.php
@@ -615,6 +615,7 @@ class Logbookadvanced extends CI_Controller {
 		$json_string['qth']['show'] = $this->def_boolean($this->input->post('qth'));
 		$json_string['frequency']['show'] = $this->def_boolean($this->input->post('frequency'));
 		$json_string['dcl']['show'] = $this->def_boolean($this->input->post('dcl'));
+		$json_string['last_modification']['show'] = $this->def_boolean($this->input->post('last_modification'));
 
 		$obj['column_settings']= json_encode($json_string);
 
diff --git a/application/models/Logbookadvanced_model.php b/application/models/Logbookadvanced_model.php
index e30514004..3ce89043c 100644
--- a/application/models/Logbookadvanced_model.php
+++ b/application/models/Logbookadvanced_model.php
@@ -603,7 +603,7 @@ class Logbookadvanced_model extends CI_Model {
 		}
 
 		$sql = "
-			SELECT qsos.*, dxcc_entities.*, lotw_users.*, station_profile.*, satellite.*, dxcc_entities.name as dxccname, mydxcc.name AS station_country, exists(select 1 from qsl_images where qsoid = qsos.COL_PRIMARY_KEY) as qslcount, coalesce(contest.name, qsos.col_contest_id) as contestname
+			SELECT qsos.*, qsos.last_modified AS qso_last_modified, dxcc_entities.*, lotw_users.*, station_profile.*, satellite.*, dxcc_entities.name as dxccname, mydxcc.name AS station_country, exists(select 1 from qsl_images where qsoid = qsos.COL_PRIMARY_KEY) as qslcount, coalesce(contest.name, qsos.col_contest_id) as contestname
 			FROM " . $this->config->item('table_name') . " qsos
 			INNER JOIN station_profile ON qsos.station_id=station_profile.station_id
 			LEFT OUTER JOIN satellite ON qsos.col_prop_mode='SAT' and qsos.COL_SAT_NAME = COALESCE(NULLIF(satellite.name, ''), NULLIF(satellite.displayname, ''))
diff --git a/application/views/logbookadvanced/index.php b/application/views/logbookadvanced/index.php
index b6350a4ee..e3b34bd4d 100644
--- a/application/views/logbookadvanced/index.php
+++ b/application/views/logbookadvanced/index.php
@@ -20,62 +20,62 @@
     let lang_gen_hamradio_nightshadow = '<?= _pgettext("Map Options", "Night Shadow"); ?>';
     let lang_gen_hamradio_ituzone = '<?= __("ITU Zone"); ?>';
     let lang_gen_hamradio_cqzone = '<?= __("CQ Zone"); ?>';
-	let lang_gen_advanced_logbook_help = '<?= __("Advanced Logbook Help"); ?>';
-	let lang_gen_advanced_logbook_continent_fix = '<?= __("Continent fix"); ?>';
-	let lang_gen_advanced_logbook_problem_fixing_itu_zones = '<?= __("There was a problem fixing ITU Zones."); ?>';
-	let lang_gen_advanced_logbook_problem_fixing_cq_zones = '<?= __("There was a problem fixing CQ Zones."); ?>';
-	let lang_gen_advanced_logbook_itu_zones_updated = '<?= __("ITU Zones updated successfully!"); ?>';
-	let lang_gen_advanced_logbook_cq_zones_updated = '<?= __("CQ Zones updated successfully!"); ?>';
-	let lang_gen_advanced_logbook_select_row_itu_zones = '<?= __("You need to select at least 1 row to fix ITU Zones!"); ?>';
-	let lang_gen_advanced_logbook_select_row_cq_zones = '<?= __("You need to select at least 1 row to fix CQ Zones!"); ?>';
-	let lang_gen_advanced_logbook_select_row_state = '<?= __("You need to select at least 1 row to fix State!"); ?>';
-	let lang_gen_advanced_logbook_state_updated = '<?= __("State updated successfully!"); ?>';
-	let lang_gen_advanced_logbook_problem_fixing_state = '<?= __("There was a problem fixing State."); ?>';
-	let lang_gen_advanced_logbook_fixing_state = '<?= __("Fixing State"); ?>';
-	let lang_gen_advanced_logbook_fixing_state_qsos = '<?= __("Fixing State (%s QSOs)"); ?>';
-	let lang_gen_advanced_logbook_fixing_state_remaining = '<?= __("Fixing State: %s remaining"); ?>';
-	let lang_gen_advanced_logbook_fixed = '<?= __("Fixed"); ?>';
-	let lang_gen_advanced_logbook_fixed_with_count = '<?= __("Fixed: %s"); ?>';
-	let lang_gen_advanced_logbook_skipped = '<?= __("Skipped"); ?>';
-	let lang_gen_advanced_logbook_skipped_with_count = '<?= __("Skipped: %s, see details for skipped rows below"); ?>';
-	let lang_gen_advanced_logbook_state_fix_complete = '<?= __("State Fix Complete"); ?>';
-	let lang_gen_advanced_logbook_state_not_supported = '<?= __("Not all DXCC entities have state support. If you need support for additional countries, please create a ticket at %s with the GeoJSON file and desired letter coding for your country."); ?>';
-	let lang_gen_advanced_logbook_github_url = 'https://github.com/wavelog/wavelog/issues';
-	let lang_gen_advanced_logbook_github_link = '<a href="https://github.com/wavelog/wavelog/issues" target="_blank">Wavelog GitHub</a>';
-	let lang_gen_advanced_logbook_select_only_one_row_quickfilter = '<?= __("Only 1 row can be selected for Quickfilter!"); ?>'
-	let lang_gen_advanced_logbook_select_at_least_one_row_quickfilter = '<?= __("You need to select a row to use the Quickfilters!"); ?>';
-	let lang_gen_advanced_logbook_select_at_least_one_row_qslcard = '<?= __("You need to select a least 1 row to display a QSL card!"); ?>';
-	let lang_gen_advanced_logbook_continents_updated = '<?= __("Continents updated successfully!"); ?>';
-	let lang_gen_advanced_logbook_problem_fixing_continents = '<?= __("There was a problem fixing Continents."); ?>';
-	let lang_gen_advanced_logbook_error = '<?= __("ERROR"); ?>';
-	let lang_gen_advanced_logbook_success = '<?= __("SUCCESS"); ?>';
-	let lang_gen_advanced_logbook_info = '<?= __("INFO"); ?>';
-	let lang_gen_advanced_logbook_warning = '<?= __("WARNING"); ?>';
-	let lang_gen_advanced_logbook_qsl_card = '<?= __("QSL Card"); ?>';
-	let lang_gen_advanced_logbook_close = '<?= __("Close"); ?>';
-	let lang_gen_advanced_logbook_save = '<?= __("Save"); ?>';
-	let lang_gen_advanced_logbook_update_now = '<?= __("Update now"); ?>';
-	let lang_gen_advanced_logbook_options = '<?= __("Options for the Advanced Logbook"); ?>';
-	let lang_gen_advanced_logbook_label_print_error = '<?= __("Something went wrong with label print. Go to labels and check if you have defined a label, and that it is set for print!"); ?>';
-	let lang_gen_advanced_logbook_select_at_least_one_row = '<?= __("You need to select a least 1 row!"); ?>';
-	let lang_gen_advanced_logbook_start_printing_at_which_label = '<?= __("Start printing at which label?"); ?>';
-	let lang_gen_advanced_logbook_select_at_least_one_row_label = '<?= __("You need to select at least 1 row to print a label!"); ?>';
-	let lang_gen_advanced_logbook_error_saving_options = '<?= __("An error occurred while saving options: "); ?>';
-	let lang_gen_advanced_logbook_select_at_least_one_row_delete = '<?= __("You need to select a least 1 row to delete!"); ?>';
-	let lang_gen_advanced_logbook_select_at_least_one_row_callbook = '<?= __("You need to select a least 1 row to update from callbook!"); ?>';
-	let lang_gen_advanced_logbook_an_error_ocurred_while_making_request = '<?= __("An error ocurred while making the request"); ?>';
-	let lang_gen_advanced_logbook_select_at_least_one_location = '<?= __("You need to select at least 1 location to do a search!"); ?>';
-	let lang_gen_advanced_logbook_update_distances = '<?= __("Update Distances"); ?>';
-	let lang_gen_advanced_logbook_records_updated = '<?= __("QSO records updated."); ?>';
-	let lang_gen_advanced_logbook_problem_updating_distances = '<?= __("There was a problem updating distances."); ?>';
-	let lang_gen_advanced_logbook_distances_updated = '<?= __("Distances updated successfully!"); ?>';
+    let lang_gen_advanced_logbook_help = '<?= __("Advanced Logbook Help"); ?>';
+    let lang_gen_advanced_logbook_continent_fix = '<?= __("Continent fix"); ?>';
+    let lang_gen_advanced_logbook_problem_fixing_itu_zones = '<?= __("There was a problem fixing ITU Zones."); ?>';
+    let lang_gen_advanced_logbook_problem_fixing_cq_zones = '<?= __("There was a problem fixing CQ Zones."); ?>';
+    let lang_gen_advanced_logbook_itu_zones_updated = '<?= __("ITU Zones updated successfully!"); ?>';
+    let lang_gen_advanced_logbook_cq_zones_updated = '<?= __("CQ Zones updated successfully!"); ?>';
+    let lang_gen_advanced_logbook_select_row_itu_zones = '<?= __("You need to select at least 1 row to fix ITU Zones!"); ?>';
+    let lang_gen_advanced_logbook_select_row_cq_zones = '<?= __("You need to select at least 1 row to fix CQ Zones!"); ?>';
+    let lang_gen_advanced_logbook_select_row_state = '<?= __("You need to select at least 1 row to fix State!"); ?>';
+    let lang_gen_advanced_logbook_state_updated = '<?= __("State updated successfully!"); ?>';
+    let lang_gen_advanced_logbook_problem_fixing_state = '<?= __("There was a problem fixing State."); ?>';
+    let lang_gen_advanced_logbook_fixing_state = '<?= __("Fixing State"); ?>';
+    let lang_gen_advanced_logbook_fixing_state_qsos = '<?= __("Fixing State (%s QSOs)"); ?>';
+    let lang_gen_advanced_logbook_fixing_state_remaining = '<?= __("Fixing State: %s remaining"); ?>';
+    let lang_gen_advanced_logbook_fixed = '<?= __("Fixed"); ?>';
+    let lang_gen_advanced_logbook_fixed_with_count = '<?= __("Fixed: %s"); ?>';
+    let lang_gen_advanced_logbook_skipped = '<?= __("Skipped"); ?>';
+    let lang_gen_advanced_logbook_skipped_with_count = '<?= __("Skipped: %s, see details for skipped rows below"); ?>';
+    let lang_gen_advanced_logbook_state_fix_complete = '<?= __("State Fix Complete"); ?>';
+    let lang_gen_advanced_logbook_state_not_supported = '<?= __("Not all DXCC entities have state support. If you need support for additional countries, please create a ticket at %s with the GeoJSON file and desired letter coding for your country."); ?>';
+    let lang_gen_advanced_logbook_github_url = 'https://github.com/wavelog/wavelog/issues';
+    let lang_gen_advanced_logbook_github_link = '<a href="https://github.com/wavelog/wavelog/issues" target="_blank">Wavelog GitHub</a>';
+    let lang_gen_advanced_logbook_select_only_one_row_quickfilter = '<?= __("Only 1 row can be selected for Quickfilter!"); ?>'
+    let lang_gen_advanced_logbook_select_at_least_one_row_quickfilter = '<?= __("You need to select a row to use the Quickfilters!"); ?>';
+    let lang_gen_advanced_logbook_select_at_least_one_row_qslcard = '<?= __("You need to select a least 1 row to display a QSL card!"); ?>';
+    let lang_gen_advanced_logbook_continents_updated = '<?= __("Continents updated successfully!"); ?>';
+    let lang_gen_advanced_logbook_problem_fixing_continents = '<?= __("There was a problem fixing Continents."); ?>';
+    let lang_gen_advanced_logbook_error = '<?= __("ERROR"); ?>';
+    let lang_gen_advanced_logbook_success = '<?= __("SUCCESS"); ?>';
+    let lang_gen_advanced_logbook_info = '<?= __("INFO"); ?>';
+    let lang_gen_advanced_logbook_warning = '<?= __("WARNING"); ?>';
+    let lang_gen_advanced_logbook_qsl_card = '<?= __("QSL Card"); ?>';
+    let lang_gen_advanced_logbook_close = '<?= __("Close"); ?>';
+    let lang_gen_advanced_logbook_save = '<?= __("Save"); ?>';
+    let lang_gen_advanced_logbook_update_now = '<?= __("Update now"); ?>';
+    let lang_gen_advanced_logbook_options = '<?= __("Options for the Advanced Logbook"); ?>';
+    let lang_gen_advanced_logbook_label_print_error = '<?= __("Something went wrong with label print. Go to labels and check if you have defined a label, and that it is set for print!"); ?>';
+    let lang_gen_advanced_logbook_select_at_least_one_row = '<?= __("You need to select a least 1 row!"); ?>';
+    let lang_gen_advanced_logbook_start_printing_at_which_label = '<?= __("Start printing at which label?"); ?>';
+    let lang_gen_advanced_logbook_select_at_least_one_row_label = '<?= __("You need to select at least 1 row to print a label!"); ?>';
+    let lang_gen_advanced_logbook_error_saving_options = '<?= __("An error occurred while saving options: "); ?>';
+    let lang_gen_advanced_logbook_select_at_least_one_row_delete = '<?= __("You need to select a least 1 row to delete!"); ?>';
+    let lang_gen_advanced_logbook_select_at_least_one_row_callbook = '<?= __("You need to select a least 1 row to update from callbook!"); ?>';
+    let lang_gen_advanced_logbook_an_error_ocurred_while_making_request = '<?= __("An error ocurred while making the request"); ?>';
+    let lang_gen_advanced_logbook_select_at_least_one_location = '<?= __("You need to select at least 1 location to do a search!"); ?>';
+    let lang_gen_advanced_logbook_update_distances = '<?= __("Update Distances"); ?>';
+    let lang_gen_advanced_logbook_records_updated = '<?= __("QSO records updated."); ?>';
+    let lang_gen_advanced_logbook_problem_updating_distances = '<?= __("There was a problem updating distances."); ?>';
+    let lang_gen_advanced_logbook_distances_updated = '<?= __("Distances updated successfully!"); ?>';
 
-	let lang_gen_advanced_logbook_confirm_fix_missing_dxcc = '<?= __("Are you sure you want to fix all QSOs with missing DXCC information? This action cannot be undone."); ?>';
-	let lang_gen_advanced_logbook_dupe_search = '<?= __("Duplicate Search"); ?>';
-	let lang_gen_advanced_logbook_search = '<?= __("Search"); ?>';
+    let lang_gen_advanced_logbook_confirm_fix_missing_dxcc = '<?= __("Are you sure you want to fix all QSOs with missing DXCC information? This action cannot be undone."); ?>';
+    let lang_gen_advanced_logbook_dupe_search = '<?= __("Duplicate Search"); ?>';
+    let lang_gen_advanced_logbook_search = '<?= __("Search"); ?>';
 
-	let lang_gen_advanced_logbook_show_more = '<?= __("Show more"); ?>';
-	let lang_gen_advanced_logbook_show_less = '<?= __("Show less"); ?>';
+    let lang_gen_advanced_logbook_show_more = '<?= __("Show more"); ?>';
+    let lang_gen_advanced_logbook_show_less = '<?= __("Show less"); ?>';
 
 
 
@@ -126,6 +126,7 @@
             \"qth\":{\"show\":\"true\"},
             \"frequency\":{\"show\":\"true\"},
             \"dcl\":{\"show\":\"true\"},
+            \"last_modification\":{\"show\":\"true\"},
         }";
     }
     $current_opts = json_decode($options);
@@ -218,23 +219,26 @@
         echo "\nvar o_template = { antennaelevation: {show: 'true'}};";
         echo "\nuser_options={...user_options, ...o_template};";
     }
-	if (!isset($current_opts->county)) {
+    if (!isset($current_opts->county)) {
         echo "\nvar o_template = { county: {show: 'true'}};";
         echo "\nuser_options={...user_options, ...o_template};";
     }
-	if (!isset($current_opts->qth)) {
+    if (!isset($current_opts->qth)) {
         echo "\nvar o_template = { qth: {show: 'true'}};";
         echo "\nuser_options={...user_options, ...o_template};";
     }
-	if (!isset($current_opts->frequency)) {
+    if (!isset($current_opts->frequency)) {
         echo "\nvar o_template = { frequency: {show: 'true'}};";
         echo "\nuser_options={...user_options, ...o_template};";
     }
-		if (!isset($current_opts->dcl)) {
+    if (!isset($current_opts->dcl)) {
         echo "\nvar o_template = { dcl: {show: 'true'}};";
         echo "\nuser_options={...user_options, ...o_template};";
     }
-
+    if (!isset($current_opts->last_modification)) {
+        echo "\nvar o_template = { last_modification: {show: 'true'}};";
+        echo "\nuser_options={...user_options, ...o_template};";
+    }
 
     foreach ($mapoptions as $mo) {
 	    if ($mo != null) {
@@ -870,6 +874,9 @@ $options = json_decode($options);
                     <?php if (($options->datetime->show ?? "true") == "true") {
                         echo '<th>' . __("Date/Time") . '</th>';
                     } ?>
+                    <?php if (($options->last_modification->show ?? "true") == "true") {
+                        echo '<th>' . __("Last modified") . '</th>';
+                    } ?>
                     <?php if (($options->de->show ?? "true") == "true") {
                         echo '<th>' . __("De") . '</th>';
                     } ?>
@@ -888,7 +895,7 @@ $options = json_decode($options);
                     <?php if (($options->band->show ?? "true") == "true") {
                         echo '<th>' . __("Band") . '</th>';
                     } ?>
-					<?php if (($options->frequency->show ?? "true") == "true") {
+                    <?php if (($options->frequency->show ?? "true") == "true") {
                         echo '<th>' . __("Frequency") . '</th>';
                     } ?>
                     <?php if (($options->gridsquare->show ?? "true") == "true") {
@@ -897,7 +904,7 @@ $options = json_decode($options);
                     <?php if (($options->name->show ?? "true") == "true") {
                         echo '<th>' . __("Name") . '</th>';
                     } ?>
-					<?php if (($options->qth->show ?? "true") == "true") {
+                    <?php if (($options->qth->show ?? "true") == "true") {
                         echo '<th>' . __("QTH") . '</th>';
                     } ?>
                     <?php if (($options->qslvia->show ?? "true") == "true") {
@@ -909,16 +916,16 @@ $options = json_decode($options);
                     <?php if (($options->qsl->show ?? "true") == "true") {
                         echo '<th>' . __("QSL") . '</th>';
                     } ?>
-					<?php if (($options->eqsl->show ?? "true") == "true") {
-						echo '<th class="eqslconfirmation">eQSL</th>';
-					} ?>
-					<?php if (($options->lotw->show ?? "true") == "true") {
-						echo '<th class="lotwconfirmation">LoTW</th>';
-					} ?>
+                    <?php if (($options->eqsl->show ?? "true") == "true") {
+                        echo '<th class="eqslconfirmation">eQSL</th>';
+                    } ?>
+                    <?php if (($options->lotw->show ?? "true") == "true") {
+                        echo '<th class="lotwconfirmation">LoTW</th>';
+                    } ?>
                     <?php if (($options->qrz->show ?? "true") == "true") {
                         echo '<th class="qrz">' . __("QRZ") . '</th>';
                     } ?>
-					<?php if (($options->dcl->show ?? "true") == "true") {
+                    <?php if (($options->dcl->show ?? "true") == "true") {
                         echo '<th>' . __("DCL") . '</th>';
                     } ?>
                     <?php if (($options->qslmsgs->show ?? "false") == "true") {
@@ -933,7 +940,7 @@ $options = json_decode($options);
                     <?php if (($options->state->show ?? "true") == "true") {
                         echo '<th>' . __("State") . '</th>';
                     } ?>
-					<?php if (($options->county->show ?? "true") == "true") {
+                    <?php if (($options->county->show ?? "true") == "true") {
                         echo '<th>' . __("County") . '</th>';
                     } ?>
                     <?php if (($options->cqzone->show ?? "true") == "true") {
diff --git a/application/views/logbookadvanced/useroptions.php b/application/views/logbookadvanced/useroptions.php
index 817a3db10..b2f6569fb 100644
--- a/application/views/logbookadvanced/useroptions.php
+++ b/application/views/logbookadvanced/useroptions.php
@@ -190,6 +190,10 @@
 			<td><?= __("Station power"); ?></td>
 			<td><div class="form-check"><input class="form-check-input" name="stationpower" type="checkbox" <?php if (($options->stationpower->show ?? "true") == "true") { echo 'checked'; } ?>></div></td>
 		</tr>
+		<tr>
+			<td><?= __("Last modified"); ?></td>
+			<td><div class="form-check"><input class="form-check-input" name="last_modification" type="checkbox" <?php if (($options->last_modification->show ?? "true") == "true") { echo 'checked'; } ?>></div></td>
+		</tr>
 	</tbody>
 </table>
 </div>
diff --git a/assets/js/sections/logbookadvanced.js b/assets/js/sections/logbookadvanced.js
index 0c2d12f84..f3aaf434d 100644
--- a/assets/js/sections/logbookadvanced.js
+++ b/assets/js/sections/logbookadvanced.js
@@ -63,6 +63,9 @@ function updateRow(qso) {
 	if ((user_options.datetime.show ?? 'true') == "true"){
 		cells.eq(c++).text(qso.qsoDateTime);
 	}
+	if ((user_options.last_modification.show ?? 'true') == "true"){
+		cells.eq(c++).text(qso.last_modified);
+	}
 	if ((user_options.de.show ?? 'true') == "true"){
 		cells.eq(c++).text(qso.de);
 	}
@@ -280,6 +283,9 @@ function loadQSOTable(rows) {
 				data.push(qso.qsoDateTime);
 			}
 		}
+		if ((user_options.last_modification.show ?? 'true') == "true"){
+			data.push(qso.last_modified);
+		}
 		if ((user_options.de.show ?? 'true') == "true"){
 			data.push(qso.de.replaceAll('0', 'Ø'));
 		}
@@ -1875,6 +1881,7 @@ function saveOptions() {
 			type: 'post',
 			data: {
 				datetime: $('input[name="datetime"]').is(':checked') ? true : false,
+				last_modification: $('input[name="last_modification"]').is(':checked') ? true : false,
 				de: $('input[name="de"]').is(':checked') ? true : false,
 				dx: $('input[name="dx"]').is(':checked') ? true : false,
 				mode: $('input[name="mode"]').is(':checked') ? true : false,
diff --git a/src/QSLManager/QSO.php b/src/QSLManager/QSO.php
index 999dffbf0..56ac89717 100644
--- a/src/QSLManager/QSO.php
+++ b/src/QSLManager/QSO.php
@@ -106,6 +106,8 @@ class QSO
 	private string $morse_key_type;
 	private string $qslmsg_rcvd;
 
+	private string $last_modified;
+
 	private $CI;
 
 	/**
@@ -160,6 +162,7 @@ class QSO
 			'COL_IOTA',
 			'COL_OPERATOR',
 			'COL_COMMENT',
+			'last_modified',
 		];
 
 		foreach ($requiredKeys as $requiredKey) {
@@ -290,6 +293,8 @@ class QSO
 		$this->antennaazimuth = $data['COL_ANT_AZ'] ?? '';
 		$this->antennaelevation = $data['COL_ANT_EL'] ?? '';
 
+		$this->last_modified = date($custom_date_format . " H:i:s", strtotime($data['qso_last_modified'] ?? ''));
+
 		if ($this->CI->session->userdata('user_measurement_base') == NULL) {
 			$measurement_base = $this->CI->config->item('measurement_base');
 		} else {
@@ -1304,6 +1309,7 @@ class QSO
 			'county' => $this->county,
 			'qth' => $this->qth,
 			'frequency' => $this->getFormattedFrequency(),
+			'last_modified' => $this->last_modified,
 		];
 	}