JDBC/MySQL:始终使用 UTC 保存时间戳

I would like to save a timestamp to the database without being converted to the local timezone by the jdbc driver. Currently only MySQL and PostgreSQL are important for me but i would appreciate if there is a database independent solution.

例子:

// i want that to be saved as 1970-01-01 00:00:00
TimeStamp ts = new java.sql.Timestamp(0);

// gets transformed to local time by jdbc driver (in my case to 1970-01-01 01:00:00)
st.setTimestamp(0, new java.sql.Timestamp(0));

// only works using postgres (mysql connector seems to ignore the calendar)
// postgres => 1970-01-01 00:00:00
// mysql => 1970-01-01 01:00:0
Calendar calutc = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
st.setTimestamp(0, new java.sql.Timestamp(0), utccal);

我已经尝试计算转换为正确值的时间戳值(例如，我的时区中的 -3600000 => 1970-01-01 00:00:00)但这不适用于日期的 postgres临近夏令时变化.