Why is subtracting these two times (in 1927) giving a strange result?

Question

If I run the following program, which parses two date strings referencing times 1 second apart and compares them:

public static void main(String[] args) throw         


        

Answer 1

The moral of this strangeness is:

• Use dates and times in UTC wherever possible.
• If you can not display a date or time in UTC, always indicate the time-zone.
• If you can not require an input date/time in UTC, require an explicitly indicated time-zone.