should be it

external/duckdb/extension/icu/include/icu-casts.hpp

@@ -0,0 +1,39 @@
+//===----------------------------------------------------------------------===//
+//                         DuckDB
+//
+// icu-datefunc.hpp
+//
+//
+//===----------------------------------------------------------------------===//
+
+#pragma once
+
+#include "icu-datefunc.hpp"
+
+namespace duckdb {
+
+struct ICUMakeDate : public ICUDateFunc {
+	static date_t Operation(icu::Calendar *calendar, timestamp_t instant);
+
+	static bool CastToDate(Vector &source, Vector &result, idx_t count, CastParameters &parameters);
+
+	static BoundCastInfo BindCastToDate(BindCastInput &input, const LogicalType &source, const LogicalType &target);
+
+	static void AddCasts(ExtensionLoader &loader);
+
+	static date_t ToDate(ClientContext &context, timestamp_t instant);
+};
+
+struct ICUToTimeTZ : public ICUDateFunc {
+	static dtime_tz_t Operation(icu::Calendar *calendar, dtime_tz_t timetz);
+
+	static bool ToTimeTZ(icu::Calendar *calendar, timestamp_t instant, dtime_tz_t &result);
+
+	static bool CastToTimeTZ(Vector &source, Vector &result, idx_t count, CastParameters &parameters);
+
+	static BoundCastInfo BindCastToTimeTZ(BindCastInput &input, const LogicalType &source, const LogicalType &target);
+
+	static void AddCasts(ExtensionLoader &loader);
+};
+
+} // namespace duckdb