diff --git a/chain/src/pipe.rs b/chain/src/pipe.rs
index 82b3fad8e..d99fc8314 100644
--- a/chain/src/pipe.rs
+++ b/chain/src/pipe.rs
@@ -130,7 +130,7 @@ fn validate_header(header: &BlockHeader, ctx: &mut BlockContext) -> Result<(), E
 		return Err(Error::InvalidBlockTime);
 	}
 	if header.timestamp >
-		time::now() + time::Duration::seconds(12 * (consensus::BLOCK_TIME_SEC as i64))
+		time::now_utc() + time::Duration::seconds(12 * (consensus::BLOCK_TIME_SEC as i64))
 	{
 		// refuse blocks more than 12 blocks intervals in future (as in bitcoin)
 		// TODO add warning in p2p code if local time is too different from peers
diff --git a/core/src/core/block.rs b/core/src/core/block.rs
index 58ec1605d..e14e2df9d 100644
--- a/core/src/core/block.rs
+++ b/core/src/core/block.rs
@@ -281,7 +281,7 @@ impl Block {
 		Ok(Block {
 				header: BlockHeader {
 					height: prev.height + 1,
-					timestamp: time::now(),
+					timestamp: time::Tm { tm_nsec: 0, ..time::now_utc() },
 					previous: prev.hash(),
 					total_difficulty: prev.pow.clone().to_difficulty() + prev.total_difficulty.clone(),
 					..Default::default()
@@ -632,10 +632,6 @@ mod test {
         assert_eq!(b.inputs, b2.inputs);
         assert_eq!(b.outputs, b2.outputs);
         assert_eq!(b.kernels, b2.kernels);
-
-        // TODO - timestamps are not coming back equal here (UTC related?) -
-        // assert_eq!(b.header, b2.header);
-        // timestamp: Tm { tm_sec: 51, tm_min: 7, tm_hour: 23, tm_mday: 20, tm_mon: 7, tm_year: 117, tm_wday: 0, tm_yday: 231, tm_isdst: 1, tm_utcoff: -14400, tm_nsec: 780878000 },
-        // timestamp: Tm { tm_sec: 51, tm_min: 7, tm_hour: 3, tm_mday: 21, tm_mon: 7, tm_year: 117, tm_wday: 1, tm_yday: 232, tm_isdst: 0, tm_utcoff: 0, tm_nsec: 0 },
+        assert_eq!(b.header, b2.header);
     }
 }
diff --git a/grin/src/miner.rs b/grin/src/miner.rs
index 51524d125..5aed1795c 100644
--- a/grin/src/miner.rs
+++ b/grin/src/miner.rs
@@ -398,7 +398,7 @@ impl Miner {
 		let mut rng = rand::OsRng::new().unwrap();
 		b.header.nonce = rng.gen();
 		b.header.difficulty = difficulty;
-		b.header.timestamp = time::at(time::Timespec::new(now_sec, 0));
+		b.header.timestamp = time::at_utc(time::Timespec::new(now_sec, 0));
 		b
 	}
 
diff --git a/pool/src/graph.rs b/pool/src/graph.rs
index 9bd1a3836..7c81c5cf8 100644
--- a/pool/src/graph.rs
+++ b/pool/src/graph.rs
@@ -46,7 +46,7 @@ impl PoolEntry {
         PoolEntry{
             transaction_hash: transaction_identifier(tx),
             size_estimate : estimate_transaction_size(tx),
-            receive_ts: time::now()}
+            receive_ts: time::now_utc()}
     }
 }