diff --git a/lib/wtlogin/tlv.js b/lib/wtlogin/tlv.js
index e6f13f21..4c8b644e 100644
--- a/lib/wtlogin/tlv.js
+++ b/lib/wtlogin/tlv.js
@@ -34,7 +34,7 @@ const tlv_map = {
             .writeU16(1) // ip ver
             .writeBytes(crypto.randomBytes(4))
             .writeU32(this.uin)
-            .write32(Date.now() & 0xffffffff)
+            .write32((Date.now() / 1000) & 0xffffffff)
             .writeBytes(Buffer.alloc(4)) //ip
             .writeU16(0);
     },
@@ -119,7 +119,7 @@ const tlv_map = {
             .writeU32(this.apk.appid)
             .writeU32(0) // app client ver
             .writeU64(this.uin)
-            .write32(Date.now() & 0xffffffff)
+            .write32((Date.now() / 1000) & 0xffffffff)
             .writeBytes(Buffer.alloc(4)) // dummy ip
             .writeU8(1) // save password
             .writeBytes(this.password_md5)
@@ -278,7 +278,7 @@ const tlv_map = {
             .writeBytes(crypto.randomBytes(16))
             .write32(1)
             .write32(16)
-            .write32(Date.now() & 0xffffffff)
+            .write32((Date.now() / 1000) & 0xffffffff)
             .writeBytes(Buffer.alloc(0));
     },
     0x401: function () {