diff --git a/src/main/java/rife/bld/operations/JmodOptions.java b/src/main/java/rife/bld/operations/JmodOptions.java
index ca9a183..3510655 100644
--- a/src/main/java/rife/bld/operations/JmodOptions.java
+++ b/src/main/java/rife/bld/operations/JmodOptions.java
@@ -6,6 +6,7 @@ package rife.bld.operations;
 
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
+import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
 import java.util.HashMap;
 
@@ -74,7 +75,7 @@ public class JmodOptions extends HashMap<String, String> {
      * @return this map of options
      */
     public JmodOptions date(ZonedDateTime date) {
-        put("--date", date.format(DateTimeFormatter.ISO_INSTANT));
+        put("--date", date.truncatedTo(ChronoUnit.SECONDS).format(DateTimeFormatter.ISO_INSTANT));
         return this;
     }
 
diff --git a/src/test/java/rife/bld/operations/TestJmodOperation.java b/src/test/java/rife/bld/operations/TestJmodOperation.java
index e3cfb94..e62b3b6 100644
--- a/src/test/java/rife/bld/operations/TestJmodOperation.java
+++ b/src/test/java/rife/bld/operations/TestJmodOperation.java
@@ -56,7 +56,7 @@ public class TestJmodOperation {
                 .classpath(args.get("--class-path"))
                 .cmds(args.get("--cmds"))
                 .config(args.get("--config"))
-                .date(ZonedDateTime.of(1997, 8, 29, 2, 14, 0, 0, ZoneId.of("America/Los_Angeles")))
+                .date(ZonedDateTime.of(1997, 8, 29, 2, 14, 0, 1, ZoneId.of("America/Los_Angeles")))
                 .dir(args.get("--dir"))
                 .doNotResolveByDefault(true)
                 .dryRun(true)