diff --git a/time/moment/moment.ts b/time/moment/moment.ts
index 86edf07b5a7..0438c66bc8f 100644
--- a/time/moment/moment.ts
+++ b/time/moment/moment.ts
@@ -421,8 +421,8 @@ namespace $ {
 			
 			'sss' : ( moment : $mol_time_moment )=> {
 				if( moment.second == null ) return ''
-				const millisecond = Math.floor( ( moment.second - Math.floor( moment.second ) ) * 1000 )
-				return String( 1000 + millisecond ).slice(1)
+				const millisecond = ( moment.second - Math.trunc( moment.second ) ).toFixed( 3 )
+				return millisecond.slice(2)
 			},
 			
 			'Z' : ( moment : $mol_time_moment )=> {