diff --git a/src/key.js b/src/key.js
index 49418e60..5c777b2a 100644
--- a/src/key.js
+++ b/src/key.js
@@ -1154,7 +1154,7 @@ export function generate(options) {
   });
 
   function generateSecretKey() {
-    secretKeyPacket = new packet.SecretKey();
+    secretKeyPacket = new packet.SecretKey(options.date);
     secretKeyPacket.packets = null;
     secretKeyPacket.algorithm = enums.read(enums.publicKey, options.keyType);
     options.curve = options.curve === enums.curve.curve25519 ? enums.curve.ed25519 : options.curve;
@@ -1162,7 +1162,7 @@ export function generate(options) {
   }
 
   function generateSecretSubkey() {
-    secretSubkeyPacket = new packet.SecretSubkey();
+    secretSubkeyPacket = new packet.SecretSubkey(options.date);
     secretKeyPacket.packets = null;
     secretSubkeyPacket.algorithm = enums.read(enums.publicKey, options.subkeyType);
     options.curve = options.curve === enums.curve.ed25519 ? enums.curve.curve25519 : options.curve;
@@ -1245,7 +1245,7 @@ async function wrapKeyObject(secretKeyPacket, secretSubkeyPacket, options) {
     const dataToSign = {};
     dataToSign.userid = userIdPacket;
     dataToSign.key = secretKeyPacket;
-    const signaturePacket = new packet.Signature();
+    const signaturePacket = new packet.Signature(options.date);
     signaturePacket.signatureType = enums.signature.cert_generic;
     signaturePacket.publicKeyAlgorithm = options.keyType;
     signaturePacket.hashAlgorithm = await getPreferredHashAlgo(secretKeyPacket);
@@ -1290,7 +1290,7 @@ async function wrapKeyObject(secretKeyPacket, secretSubkeyPacket, options) {
     const dataToSign = {};
     dataToSign.key = secretKeyPacket;
     dataToSign.bind = secretSubkeyPacket;
-    const subkeySignaturePacket = new packet.Signature();
+    const subkeySignaturePacket = new packet.Signature(options.date);
     subkeySignaturePacket.signatureType = enums.signature.subkey_binding;
     subkeySignaturePacket.publicKeyAlgorithm = options.keyType;
     subkeySignaturePacket.hashAlgorithm = await getPreferredHashAlgo(secretSubkeyPacket);
diff --git a/src/openpgp.js b/src/openpgp.js
index efd21cce..8f9ff426 100644
--- a/src/openpgp.js
+++ b/src/openpgp.js
@@ -111,11 +111,11 @@ export function destroyWorker() {
  */
 
 export function generateKey({
-  userIds=[], passphrase, numBits=2048, unlocked=false, keyExpirationTime=0, curve=""
+  userIds=[], passphrase, numBits=2048, unlocked=false, keyExpirationTime=0, curve="", date=new Date()
 } = {}) {
   userIds = formatUserIds(userIds);
   const options = {
-    userIds, passphrase, numBits, unlocked, keyExpirationTime, curve
+    userIds, passphrase, numBits, unlocked, keyExpirationTime, curve, date
   };
 
   if (util.getWebCryptoAll() && numBits < 2048) {
diff --git a/src/packet/public_key.js b/src/packet/public_key.js
index f9b242ec..de2bb5fc 100644
--- a/src/packet/public_key.js
+++ b/src/packet/public_key.js
@@ -42,7 +42,7 @@ import util from '../util';
  * @memberof module:packet
  * @constructor
  */
-function PublicKey() {
+function PublicKey(date=new Date()) {
   /**
    * Packet type
    * @type {module:enums.packet}
@@ -57,7 +57,7 @@ function PublicKey() {
    * Key creation date.
    * @type {Date}
    */
-  this.created = util.normalizeDate();
+  this.created = util.normalizeDate(date);
   /**
    * Algorithm specific params
    * @type {Array<Object>}
diff --git a/src/packet/secret_key.js b/src/packet/secret_key.js
index 4255e4a1..80135a98 100644
--- a/src/packet/secret_key.js
+++ b/src/packet/secret_key.js
@@ -39,8 +39,8 @@ import util from '../util';
  * @constructor
  * @extends module:packet.PublicKey
  */
-function SecretKey() {
-  publicKey.call(this);
+function SecretKey(date=new Date()) {
+  publicKey.call(this, date);
   /**
    * Packet type
    * @type {module:enums.packet}
diff --git a/src/packet/secret_subkey.js b/src/packet/secret_subkey.js
index 74a9c298..e6f2ac4d 100644
--- a/src/packet/secret_subkey.js
+++ b/src/packet/secret_subkey.js
@@ -30,8 +30,8 @@ import enums from '../enums';
  * @constructor
  * @extends module:packet.SecretKey
  */
-function SecretSubkey() {
-  secretKey.call(this);
+function SecretSubkey(date=new Date()) {
+  secretKey.call(this, date);
   this.tag = enums.packet.secretSubkey;
 }