As Benjamin M correctly stated in a comment, 01 would be a string (not an int). The correct way to convert a date to a string goes through a formatter. This one gives you a two-digit month — so 01 for January through 12 for December: private static final DateTimeFormatter monthFormatter = DateTimeFormatter.ofPattern(“MM”); To use … Read more
I am assuming that have got a string, for example 2016-01-25, and that you want a string containing the start of the day in the JVM’s default time zone (it wasn’t clear from the question). I first define a formatter for the format that you want (it’s ISO 8601): private static DateTimeFormatter formatter = DateTimeFormatter.ofPattern(“uuuu-MM-dd’T’HH:mm:ss.SSSxx”); … Read more
TL;DR: You’re right to be concerned about the use of the system local time zone, but you should have been concerned earlier in the process, when you used the system local time zone to construct a Date in the first place. If you just want the formatted string to have the same components that Date.getDate(), … Read more