diff --git a/beacon_chain/beacon_clock.nim b/beacon_chain/beacon_clock.nim
index a914174c4..fda3d3d09 100644
--- a/beacon_chain/beacon_clock.nim
+++ b/beacon_chain/beacon_clock.nim
@@ -16,6 +16,10 @@ from times import Time, getTime, fromUnix, `<`, `-`, inNanoseconds
 
 export chronos.Duration, Moment, now
 
+const
+  NANOSECONDS_PER_SLOT* = SECONDS_PER_SLOT * 1_000_000_000'u64
+  NANOSECONDS_PER_EPOCH* = NANOSECONDS_PER_SLOT * SLOTS_PER_EPOCH
+
 type
   BeaconClock* = object
     ## The beacon clock represents time as it passes on a beacon chain. Beacon
diff --git a/beacon_chain/validator_client/common.nim b/beacon_chain/validator_client/common.nim
index d90b2c4be..744736ffc 100644
--- a/beacon_chain/validator_client/common.nim
+++ b/beacon_chain/validator_client/common.nim
@@ -936,6 +936,7 @@ proc checkedWaitForSlot*(vc: ValidatorClientRef, destinationSlot: Slot,
     start_slot = shortLog(currentSlot)
     dest_slot = shortLog(destinationSlot)
     time_to_slot = shortLog(timeToSlot)
+    offset = shortLog(chronosOffset)
 
   while true:
     await sleepAsync(timeToSlot)