diff --git a/includes/admin/class-secure.php b/includes/admin/class-secure.php
index 283dbde8..6493eff2 100644
--- a/includes/admin/class-secure.php
+++ b/includes/admin/class-secure.php
@@ -68,12 +68,12 @@ if ( ! class_exists( 'um\admin\Secure' ) ) {
 				if ( $date_from ) {
 
 					$date_query_attr = array(
-						'after'  => wp_date( 'F j, Y', strtotime( '-1 day', $date_from ) ),
-						'before' => wp_date( 'F j, Y', strtotime( '+1 day', $date_from ) ),
+						'after'  => gmdate( get_option( 'date_format', 'F j, Y' ), strtotime( '-1 day', $date_from ) ),
+						'before' => gmdate( get_option( 'date_format', 'F j, Y' ), strtotime( '+1 day', $date_from ) ),
 					);
 
 					if ( $date_to ) {
-						$date_query_attr['before'] = wp_date( 'F j, Y', strtotime( '+1 day', $date_to ) );
+						$date_query_attr['before'] = gmdate( get_option( 'date_format', 'F j, Y' ), strtotime( '+1 day', $date_to ) );
 					}
 
 					$query->set( 'date_query', $date_query_attr );
@@ -205,7 +205,7 @@ if ( ! class_exists( 'um\admin\Secure' ) ) {
 			$scan_status       = get_option( 'um_secure_scan_status' );
 			$last_scanned_time = get_option( 'um_secure_last_time_scanned' );
 			if ( ! empty( $last_scanned_time ) ) {
-				$scanner_content .= human_time_diff( $last_scanned_time, current_datetime()->format( 'U' ) ) . ' ' . esc_html__( 'ago', 'ultimate-member' );
+				$scanner_content .= human_time_diff( strtotime( $last_scanned_time ) ) . ' ' . esc_html__( 'ago', 'ultimate-member' );
 				if ( 'started' === $scan_status ) {
 					$scanner_content .= ' - ' . esc_html__( 'Not Completed.', 'ultimate-member' );
 				}
@@ -328,7 +328,7 @@ if ( ! class_exists( 'um\admin\Secure' ) ) {
 					$restore_account_url = admin_url( 'users.php?user_id=' . $user_id . '&um_secure_restore_account=1&_wpnonce=' . $nonce );
 					$action              = ' &#183; <a href=" ' . esc_attr( $restore_account_url ) . ' " onclick=\'return confirm("' . esc_js( __( 'Are you sure that you want to restore this account after getting flagged for suspicious activity?', 'ultimate-member' ) ) . '");\'><small>' . esc_html__( 'Restore Account', 'ultimate-member' ) . '</small></a>';
 					if ( ! empty( $datetime ) ) {
-						$val .= '<div><small>' . human_time_diff( $datetime, current_datetime()->format( 'U' ) ) . ' ' . __( 'ago', 'ultimate-member' ) . '</small>' . $action . '</div>';
+						$val .= '<div><small>' . human_time_diff( strtotime( $datetime ) ) . ' ' . __( 'ago', 'ultimate-member' ) . '</small>' . $action . '</div>';
 					}
 				}
 				um_reset_user();
diff --git a/includes/ajax/class-secure.php b/includes/ajax/class-secure.php
index 89edbe9b..b761bfff 100644
--- a/includes/ajax/class-secure.php
+++ b/includes/ajax/class-secure.php
@@ -39,7 +39,7 @@ class Secure {
 		if ( empty( $last_scanned_capability ) ) {
 			delete_option( 'um_secure_scanned_details' );
 			update_option( 'um_secure_scan_status', 'started' );
-			update_option( 'um_secure_last_time_scanned', current_datetime()->format( 'U' ) );
+			update_option( 'um_secure_last_time_scanned', current_time( 'mysql', true ) );
 		}
 
 		$scan_details = get_option( 'um_secure_scanned_details', array() );
@@ -220,8 +220,8 @@ class Secure {
 					'number'     => -1,
 					'exclude'    => $arr_suspected_accounts,
 					'date_query' => array(
-						'after'  => wp_date( 'F d, Y', strtotime( '-1 day', $oldest_date ) ),
-						'before' => wp_date( 'F d, Y', strtotime( '+1 day', $newest_date ) ),
+						'after'  => gmdate( get_option( 'date_format', 'F j, Y' ), strtotime( '-1 day', $oldest_date ) ),
+						'before' => gmdate( get_option( 'date_format', 'F j, Y' ), strtotime( '+1 day', $newest_date ) ),
 					),
 				)
 			);
diff --git a/includes/common/class-secure.php b/includes/common/class-secure.php
index 2c247c95..a0d01571 100644
--- a/includes/common/class-secure.php
+++ b/includes/common/class-secure.php
@@ -91,7 +91,7 @@ if ( ! class_exists( 'um\common\Secure' ) ) {
 						),
 						array(
 							'key'     => 'um_user_blocked__timestamp',
-							'value'   => gmdate( 'Y-m-d H:i:s', strtotime( 'now' ) ),
+							'value'   => gmdate( 'Y-m-d H:i:s' ),
 							'compare' => '<=',
 							'type'    => 'DATE',
 						),
@@ -235,7 +235,7 @@ if ( ! class_exists( 'um\common\Secure' ) ) {
 			}
 			um_reset_user();
 			update_user_meta( $user->ID, 'um_user_blocked', 'suspicious_activity' );
-			update_user_meta( $user->ID, 'um_user_blocked__timestamp', current_datetime()->format( 'U' ) );
+			update_user_meta( $user->ID, 'um_user_blocked__timestamp', current_time( 'mysql', true ) );
 			UM()->user()->remove_cache( $user->ID );
 		}