diff --git a/libgnucash/engine/gnc-timezone.cpp b/libgnucash/engine/gnc-timezone.cpp
index a60436ad65..3d6959fb5f 100644
--- a/libgnucash/engine/gnc-timezone.cpp
+++ b/libgnucash/engine/gnc-timezone.cpp
@@ -739,3 +739,10 @@ TimeZoneProvider::get(int year) const noexcept
             return m_zone_vector.front().second;
     return iter->second;
 }
+
+void
+TimeZoneProvider::dump() const noexcept
+{
+    for (auto zone : m_zone_vector)
+	std::cout << zone.first << ": " << zone.second->to_posix_string() << "\n";
+}
diff --git a/libgnucash/engine/gnc-timezone.hpp b/libgnucash/engine/gnc-timezone.hpp
index 425bd9497e..c533cfdd6f 100644
--- a/libgnucash/engine/gnc-timezone.hpp
+++ b/libgnucash/engine/gnc-timezone.hpp
@@ -55,6 +55,7 @@ public:
     TimeZoneProvider operator=(const TimeZoneProvider&) = delete;
     TimeZoneProvider operator=(const TimeZoneProvider&&) = delete;
     TZ_Ptr get (int year) const noexcept;
+    void dump() const noexcept;
     static const unsigned int min_year; //1400
     static const unsigned int max_year; //9999
 private: