diff --git a/apps/provisioning_api/lib/Controller/AUserData.php b/apps/provisioning_api/lib/Controller/AUserData.php
index 61459e40b8b..a90fa0e55ea 100644
--- a/apps/provisioning_api/lib/Controller/AUserData.php
+++ b/apps/provisioning_api/lib/Controller/AUserData.php
@@ -116,6 +116,7 @@ abstract class AUserData extends OCSController {
 
 		// Find the data
 		$data['id'] = $targetUserObject->getUID();
+		$data['firstLogin'] = $targetUserObject->getFirstLogin() * 1000;
 		$data['lastLogin'] = $targetUserObject->getLastLogin() * 1000;
 		$data['backend'] = $targetUserObject->getBackendClassName();
 		$data['subadmin'] = $this->getUserSubAdminGroupsData($targetUserObject->getUID());
diff --git a/apps/provisioning_api/lib/ResponseDefinitions.php b/apps/provisioning_api/lib/ResponseDefinitions.php
index afa725c110a..2a5d13746cd 100644
--- a/apps/provisioning_api/lib/ResponseDefinitions.php
+++ b/apps/provisioning_api/lib/ResponseDefinitions.php
@@ -46,6 +46,7 @@ namespace OCA\Provisioning_API;
  *     headlineScope?: Provisioning_APIUserDetailsScope,
  *     id: string,
  *     language: string,
+ *     firstLogin: int,
  *     lastLogin: int,
  *     locale: string,
  *     manager: string,
diff --git a/core/Command/User/Info.php b/core/Command/User/Info.php
index 55298f0164c..de2fd99652c 100644
--- a/core/Command/User/Info.php
+++ b/core/Command/User/Info.php
@@ -56,6 +56,7 @@ class Info extends Base {
 			'groups' => $groups,
 			'quota' => $user->getQuota(),
 			'storage' => $this->getStorageInfo($user),
+			'first_seen' => date(\DateTimeInterface::ATOM, $user->getFirstLogin()), // ISO-8601
 			'last_seen' => date(\DateTimeInterface::ATOM, $user->getLastLogin()), // ISO-8601
 			'user_directory' => $user->getHome(),
 			'backend' => $user->getBackendClassName()
diff --git a/lib/private/User/LazyUser.php b/lib/private/User/LazyUser.php
index 92a0c735215..9eb5f9afb25 100644
--- a/lib/private/User/LazyUser.php
+++ b/lib/private/User/LazyUser.php
@@ -60,11 +60,15 @@ class LazyUser implements IUser {
 		return $this->getUser()->setDisplayName($displayName);
 	}
 
-	public function getLastLogin() {
+	public function getLastLogin(): int {
 		return $this->getUser()->getLastLogin();
 	}
 
-	public function updateLastLoginTimestamp() {
+	public function getFirstLogin(): int {
+		return $this->getUser()->getFirstLogin();
+	}
+
+	public function updateLastLoginTimestamp(): bool {
 		return $this->getUser()->updateLastLoginTimestamp();
 	}
 
diff --git a/lib/private/User/User.php b/lib/private/User/User.php
index 4b1ec4366d0..311f057be54 100644
--- a/lib/private/User/User.php
+++ b/lib/private/User/User.php
@@ -65,8 +65,8 @@ class User implements IUser {
 	/** @var string */
 	private $home;
 
-	/** @var int|null */
-	private $lastLogin;
+	private ?int $lastLogin = null;
+	private ?int $firstLogin = null;
 
 	/** @var IAvatarManager */
 	private $avatarManager;
@@ -202,28 +202,42 @@ class User implements IUser {
 	/**
 	 * returns the timestamp of the user's last login or 0 if the user did never
 	 * login
-	 *
-	 * @return int
 	 */
-	public function getLastLogin() {
+	public function getLastLogin(): int {
 		if ($this->lastLogin === null) {
 			$this->lastLogin = (int)$this->config->getUserValue($this->uid, 'login', 'lastLogin', 0);
 		}
-		return (int)$this->lastLogin;
+		return $this->lastLogin;
+	}
+
+	/**
+	 * returns the timestamp of the user's last login or 0 if the user did never
+	 * login
+	 */
+	public function getFirstLogin(): int {
+		if ($this->firstLogin === null) {
+			$this->firstLogin = (int)$this->config->getUserValue($this->uid, 'login', 'firstLogin', 0);
+		}
+		return $this->firstLogin;
 	}
 
 	/**
 	 * updates the timestamp of the most recent login of this user
 	 */
-	public function updateLastLoginTimestamp() {
+	public function updateLastLoginTimestamp(): bool {
 		$previousLogin = $this->getLastLogin();
+		$firstLogin = $this->getFirstLogin();
 		$now = time();
-		$firstTimeLogin = $previousLogin === 0;
+		$firstTimeLogin = $firstLogin === 0;
 
 		if ($now - $previousLogin > 60) {
-			$this->lastLogin = time();
-			$this->config->setUserValue(
-				$this->uid, 'login', 'lastLogin', (string)$this->lastLogin);
+			$this->lastLogin = $now;
+			$this->config->setUserValue($this->uid, 'login', 'lastLogin', (string)$this->lastLogin);
+		}
+
+		if ($firstTimeLogin) {
+			$this->firstLogin = $now;
+			$this->config->setUserValue($this->uid, 'login', 'firstLogin', (string)$this->firstLogin);
 		}
 
 		return $firstTimeLogin;
diff --git a/lib/public/IUser.php b/lib/public/IUser.php
index 8c7d6a1283e..f87fd8398e6 100644
--- a/lib/public/IUser.php
+++ b/lib/public/IUser.php
@@ -50,13 +50,22 @@ interface IUser {
 	 * @return int
 	 * @since 8.0.0
 	 */
-	public function getLastLogin();
+	public function getLastLogin(): int;
 
 	/**
-	 * updates the timestamp of the most recent login of this user
+	 * Returns the timestamp of the user's first login or 0 if the user did never login
+	 *
+	 * @since 31.0.0
+	 */
+	public function getFirstLogin(): int;
+
+	/**
+	 * Updates the timestamp of the most recent login of this user (and first login if needed)
+	 *
+	 * @return bool whether this is the first login
 	 * @since 8.0.0
 	 */
-	public function updateLastLoginTimestamp();
+	public function updateLastLoginTimestamp(): bool;
 
 	/**
 	 * Delete the user