diff --git a/lib/src/main/java/com/auth0/jwt/JWTVerifier.java b/lib/src/main/java/com/auth0/jwt/JWTVerifier.java
index 6f513c7e..30099252 100644
--- a/lib/src/main/java/com/auth0/jwt/JWTVerifier.java
+++ b/lib/src/main/java/com/auth0/jwt/JWTVerifier.java
@@ -427,7 +427,7 @@ private void assertValidStringClaim(String claimName, String value, String expec
 
     private void assertValidDateClaim(Date date, long leeway, boolean shouldBeFuture) {
         Date today = clock.getToday();
-        today.setTime((long) Math.floor((today.getTime() / 1000) * 1000)); // truncate millis
+        today.setTime(today.getTime() / 1000 * 1000); // truncate millis
         if (shouldBeFuture) {
             assertDateIsFuture(date, leeway, today);
         } else {