diff --git a/src/main/java/com/hubspot/jinjava/lib/fn/Functions.java b/src/main/java/com/hubspot/jinjava/lib/fn/Functions.java
index 396a0f9be..259eb0e9f 100644
--- a/src/main/java/com/hubspot/jinjava/lib/fn/Functions.java
+++ b/src/main/java/com/hubspot/jinjava/lib/fn/Functions.java
@@ -213,6 +213,8 @@ public static String dateTimeFormat(Object var, String... format) {
       zoneOffset = ((ZonedDateTime) var).getZone();
     } else if (var instanceof PyishDate) {
       zoneOffset = ((PyishDate) var).toDateTime().getZone();
+    } else if (interpreter != null) {
+      zoneOffset = interpreter.getConfig().getTimeZone();
     }
 
     if (var == null) {