created macro and fixed naming

macros/timestamp_to_utc.sql

@@ -0,0 +1,22 @@
+/*
+This macro converts a timestamp column from Unix epoch time (in milliseconds) 
+to a UTC timestamp and a corresponding UTC date.
+
+It generates two output fields:
+1. The timestamp in UTC, with the alias formatted as <column_name>_at_utc.
+2. The date in UTC, with the alias formatted as <column_name>_date_utc.
+
+This macro is intended to be used within a SELECT statement 
+and ensures that the output is properly formatted for further analysis.
+*/
+{% macro timestamp_to_utc(column_name) %}
+    to_timestamp(
+        {{ adapter.quote(column_name) }}::double precision / 1000
+    ) at time zone 'UTC' as {{ column_name | replace("At", "") }}_at_utc,
+
+    cast(
+        to_timestamp(
+            {{ adapter.quote(column_name) }}::double precision / 1000
+        ) at time zone 'UTC' as date
+    ) as {{ column_name | replace("At", "") }}_date_utc
+{% endmacro %}