android.text.format.DateFormat “HH” is not recognized like with java.text.SimpleDateFormat

Question

When I use the \"HH\" flag in android.text.format.DateFormat, it is interpreted as a literal \"HH\". But when I use java.text.SimpleDateFormat it

Answer 1

For android.text.format.DateFormat you designate Hour in day as kk like this:

String dateAndroid = android.text.format.DateFormat.format(
    "dd-MM-yyyy kk:mm:ss", calendar).toString();

For java.text.SimpleDateFormat you designate hour in day as HH.

H hour in day (0-23)

Documentation for android.text.format.DateFormat:

public static final char HOUR_OF_DAY

This designator indicates the hour of the day in 24 hour format. Example for 3pm: k -> 15 Examples for midnight: k -> 0 kk -> 00