Datetime behind an hour after insertion. Daylight savings

Question

I\'ve noticed that my MySql database is subtracting an hour from my DateTime objects when I insert certain dates to my tables. Example:

Insert: 2021-03-29 11:44:1         


        

Answer 1

You can use OffsetDateTime. Since JDBC 4.2 , you can use java.time types directly with JDBC:

DateTimeFormatter dtf = DateTimeFormatter.ofPattern("uuuu-MM-dd HH:mm:ss.SSS", Locale.ENGLISH);

OffsetDateTime odt = LocalDateTime.parse("2021-03-29 11:44:14.938", dtf)
                                    .atZone(ZoneId.of("Europe/London"))
                                    .toOffsetDateTime();

PreparedStatement st = conn.prepareStatement("INSERT INTO mytable (columnfoo) VALUES (?)");
st.setObject(1, odt);
st.executeUpdate();
st.close();

Learn about the modern date-time API from Trail: Date Time.