diff --git a/db/boinc_db.h b/db/boinc_db.h
index 2c179b3b82..d2fccecd67 100755
--- a/db/boinc_db.h
+++ b/db/boinc_db.h
@@ -198,7 +198,8 @@ struct HOST {
     double expavg_time;     // last time the above was updated
 
     // all remaining items are assigned by the client
-    int timezone;           // hours difference from GMT
+    int timezone;           // local STANDARD time at host - UTC time
+                            // (in seconds) 
     char domain_name[256];
     char serialnum[256];
     char last_ip_addr[256]; // internal IP address as of last RPC
diff --git a/lib/gui_rpc_client.h b/lib/gui_rpc_client.h
index 67d9b46c4f..4f95e14f70 100644
--- a/lib/gui_rpc_client.h
+++ b/lib/gui_rpc_client.h
@@ -280,7 +280,7 @@ public:
 };
 
 struct HOST_INFO {
-    int timezone;    // seconds added to local time to get UTC
+    int timezone;    // local STANDARD time - UTC time (in seconds) 
     char domain_name[256];
     char serialnum[256];
     char ip_addr[256];
diff --git a/lib/hostinfo.C b/lib/hostinfo.C
index f8ece93858..541b8abe72 100644
--- a/lib/hostinfo.C
+++ b/lib/hostinfo.C
@@ -40,7 +40,7 @@
 // Reset the host info struct to default values
 //
 void HOST_INFO::clear_host_info() {
-    timezone = 0;        // seconds added to local time to get UTC
+    timezone = 0;        // local STANDARD time - UTC time (in seconds) 
     strcpy(domain_name, "");
     strcpy(serialnum, "");
     strcpy(ip_addr, "");
diff --git a/lib/hostinfo.h b/lib/hostinfo.h
index 3189df634f..a05f993699 100644
--- a/lib/hostinfo.h
+++ b/lib/hostinfo.h
@@ -31,7 +31,7 @@
 // NET_STATS (average network bandwidths)
 
 struct HOST_INFO {
-    int timezone;    // local STANDARD time - UTC time
+    int timezone;    // local STANDARD time - UTC time (in seconds)
     char domain_name[256];
     char serialnum[256];
     char ip_addr[256];