--- apache-ivy-2.5.2/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java	2023-09-19 08:19:56.006332869 +0200
+++ apache-ivy-2.5.2/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java	2023-09-19 08:20:15.856475360 +0200
@@ -1472,7 +1472,7 @@
     }
 
     private Artifact getDefaultMetadataArtifact(ModuleRevisionId mrid) {
-        return new DefaultArtifact(mrid, new Date(), "metadata", "metadata", "ivy", true);
+        return new DefaultArtifact(mrid, System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date(), "metadata", "metadata", "ivy", true);
     }
 
     // not used any more, but may be useful for finer grained locking when downloading artifacts
--- apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultArtifact.java	2023-09-19 08:19:56.009666226 +0200
+++ apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultArtifact.java	2023-09-19 08:20:27.823227936 +0200
@@ -100,7 +100,7 @@
             throw new NullPointerException("null arid not allowed");
         }
         if (publicationDate == null) {
-            publicationDate = new Date();
+            publicationDate = System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date();
         }
         this.publicationDate = publicationDate;
         this.arid = arid;
--- apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultModuleDescriptor.java	2023-09-19 08:19:56.009666226 +0200
+++ apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultModuleDescriptor.java	2023-09-19 08:21:12.330214087 +0200
@@ -272,7 +272,7 @@
         this.resolvedRevId = id;
         this.status = status;
         this.publicationDate = pubDate;
-        this.resolvedPublicationDate = publicationDate == null ? new Date() : publicationDate;
+        this.resolvedPublicationDate = publicationDate == null ? (System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date()) : publicationDate;
         this.isDefault = isDefault;
         this.parser = XmlModuleDescriptorParser.getInstance();
     }
@@ -308,7 +308,7 @@
     public void setPublicationDate(Date publicationDate) {
         this.publicationDate = publicationDate;
         if (resolvedPublicationDate == null) {
-            resolvedPublicationDate = publicationDate == null ? new Date() : publicationDate;
+            resolvedPublicationDate = publicationDate == null ? (System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date()) : publicationDate;
         }
     }