diff --git a/contracts/XCounter.sol b/contracts/XCounter.sol
index 33ff2c1..0580388 100644
--- a/contracts/XCounter.sol
+++ b/contracts/XCounter.sol
@@ -9,6 +9,7 @@ contract XCounter is CustomChanIbcApp {
     uint64 public counter;
     mapping (uint64 => address) public counterMap;
 
+    uint64 public immutable CONST_TIME = 1e9;
 
     constructor(IbcDispatcher _dispatcher) CustomChanIbcApp(_dispatcher) {}
 
@@ -37,7 +38,7 @@ contract XCounter is CustomChanIbcApp {
         bytes memory payload = abi.encode(msg.sender);
 
         // setting the timeout timestamp at 10h from now
-        uint64 timeoutTimestamp = uint64((block.timestamp + timeoutSeconds) * 1000000000);
+        uint64 timeoutTimestamp = uint64((block.timestamp + timeoutSeconds) * CONST_TIME);
 
         // calling the Dispatcher to send the packet
         dispatcher.sendPacket(channelId, payload, timeoutTimestamp);
diff --git a/contracts/XCounterUC.sol b/contracts/XCounterUC.sol
index fa8b52c..af4f015 100644
--- a/contracts/XCounterUC.sol
+++ b/contracts/XCounterUC.sol
@@ -9,6 +9,8 @@ contract XCounterUC is UniversalChanIbcApp {
     uint64 public counter;
     mapping(uint64 => address) public counterMap;
 
+    uint64 public immutable CONST_TIME = 1e9;
+
     constructor(address _middleware) UniversalChanIbcApp(_middleware) {}
 
     // application specific logic
@@ -32,7 +34,7 @@ contract XCounterUC is UniversalChanIbcApp {
         increment();
         bytes memory payload = abi.encode(msg.sender, counter);
 
-        uint64 timeoutTimestamp = uint64((block.timestamp + timeoutSeconds) * 1000000000);
+        uint64 timeoutTimestamp = uint64((block.timestamp + timeoutSeconds) * CONST_TIME);
 
         IbcUniversalPacketSender(mw).sendUniversalPacket(
             channelId, IbcUtils.toBytes32(destPortAddr), payload, timeoutTimestamp