diff --git a/i2p2www/pages/site/docs/spec/ssu.html b/i2p2www/pages/site/docs/spec/ssu.html
index e21fa3a2..fa99ca12 100644
--- a/i2p2www/pages/site/docs/spec/ssu.html
+++ b/i2p2www/pages/site/docs/spec/ssu.html
@@ -237,7 +237,8 @@ See the documentation of individual messages below for details on IPv6 support.
 
 <h3 id="time">Timestamps</h3>
 While most of I2P uses 8-byte <a href="{{ site_url('docs/spec/common-structures') }}#type_Date">Date</a> timestamps with
-millisecond resolution, SSU uses a 4-byte timestamp with one-second resolution.
+millisecond resolution, SSU uses 4-byte unsigned integer timestamps with one-second resolution.
+Because these values are unsigned, they will not roll over until February 2106.