diff --git a/types/pino/index.d.ts b/types/pino/index.d.ts
index ae7e9da522a451..61ef9db19f28ca 100644
--- a/types/pino/index.d.ts
+++ b/types/pino/index.d.ts
@@ -259,6 +259,10 @@ declare namespace P {
          * The key in the JSON object to use as the highlighted message. Default: "msg".
          */
         messageKey?: string;
+        /**
+         * The key in the JSON object to use for timestamp display. Default: "time".
+         */
+        timestampKey?: string;
         /**
          * If set to true, will add color information to the formatted output message. Default: `false`.
          */
diff --git a/types/pino/pino-tests.ts b/types/pino/pino-tests.ts
index 1a64f11d99158e..5c87a24ece1ec2 100644
--- a/types/pino/pino-tests.ts
+++ b/types/pino/pino-tests.ts
@@ -133,6 +133,7 @@ const pretty = pino({
 		errorProps: '',
 		levelFirst: false,
 		messageKey: 'msg',
+		timestampKey: "timestamp",
 		translateTime: 'UTC:h:MM:ss TT Z',
 		search: 'foo == `bar`'
 	}