diff --git a/op/zircuit/garfield/genesis.json b/op/zircuit/garfield/genesis.json
index a4e18b06..3ae90083 100644
--- a/op/zircuit/garfield/genesis.json
+++ b/op/zircuit/garfield/genesis.json
@@ -32,7 +32,9 @@
       "eip1559Elasticity": 6,
       "eip1559Denominator": 50,
       "eip1559DenominatorCanyon": 250
-    }
+    },
+    "jovianTime": 1787761801,
+    "karstTime": 1788883201
   },
   "nonce": "0x0",
   "timestamp": "0x67bb6d60",
diff --git a/op/zircuit/garfield/rollup.json b/op/zircuit/garfield/rollup.json
index 19fb2df5..c092809f 100644
--- a/op/zircuit/garfield/rollup.json
+++ b/op/zircuit/garfield/rollup.json
@@ -40,5 +40,7 @@
     "eip1559Elasticity": 6,
     "eip1559Denominator": 50,
     "eip1559DenominatorCanyon": 250
-  }
+  },
+  "jovian_time": 1787761801,
+  "karst_time": 1788883201
 }
diff --git a/op/zircuit/mainnet/genesis.json b/op/zircuit/mainnet/genesis.json
index 1597a041..c3562e5c 100644
--- a/op/zircuit/mainnet/genesis.json
+++ b/op/zircuit/mainnet/genesis.json
@@ -32,7 +32,9 @@
       "eip1559Elasticity": 6,
       "eip1559Denominator": 50,
       "eip1559DenominatorCanyon": 250
-    }
+    },
+    "jovianTime": 1789489801,
+    "karstTime": 1790179201
   },
   "nonce": "0x0",
   "timestamp": "0x668424d7",
@@ -15327,4 +15329,4 @@
   "baseFeePerGas": "0x3b9aca00",
   "excessBlobGas": null,
   "blobGasUsed": null
-}
\ No newline at end of file
+}
diff --git a/op/zircuit/mainnet/rollup.json b/op/zircuit/mainnet/rollup.json
index 747252cd..6fe95cb3 100644
--- a/op/zircuit/mainnet/rollup.json
+++ b/op/zircuit/mainnet/rollup.json
@@ -40,5 +40,7 @@
     "eip1559Elasticity": 6,
     "eip1559Denominator": 50,
     "eip1559DenominatorCanyon": 250
-  }
+  },
+  "jovian_time": 1789489801,
+  "karst_time": 1790179201
 }