ParquetSharp's UTC adjustment

Question

I am trying to use the ParquetSharp library (https://github.com/G-Research/ParquetSharp) to write some Parquet files from an SQL server database. As the original data is not adjusted to UTC, I want the output parquet file to also be "datetime64[ns]" instead of "datetime64[ns, UTC]".

I have tried changing the DateTime with argument LogicalType.Timestamp(isAdjustedToUtc: false) but this causes an exception as the original data is of type DateTime.

columns[i] = new Column(typeof(DateTime?), cdt.Schema[i].Name,LogicalType.Timestamp(isAdjustedToUtc: false, timeUnit: TimeUnit.Nanos)); 

I try to use LogicalWriterOverride as suggested in the documentation:

using (var dtWriter = groupWriter.NextColumn().LogicalWriterOverride<DateTime?>())
{
   dtWriter.WriteBatch(dtArray);
}

But a NotSupportedException gets thrown:

System.NotSupportedException: 'unsupported logical system type System.Nullable`1[System.DateTime] with logical type Timestamp(isAdjustedToUTC=false, timeUnit=nanoseconds, is_from_converted_type=false, force_set_converted_type=false)'

Edit: I managed to find somewhat of a solution, that does not conflict with the original data. In LogicalType.Timestamp(isAdjustedToUtc: false, timeUnit: TimeUnit.Nanos) I changed to TimeUnit.Micros as the DateTime type does not support Nanos precision, so then I override NextColumn().LogicalWriterOverride<DateTime?> and the UTC is removed in the generated parquet file, while the precision is in microseconds.