DateUtils.formatDateTime() allows you to supply a time, and based on the flags you provide, it creates a localized datetime string. The flags allow you to specify whether to include specific elements (like the weekday).

Date date = new Date();
String localizedDate = DateUtils.formatDateTime(context, date.getTime(), DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_WEEKDAY);

formatDateTime() automatically takes care about proper date formats.

Format a date:

Date date = new Date();
DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM);
String localizedDate = df.format(date)

Format a date and time. Date is in short format, time is in long format:

Date date = new Date();
DateFormat df = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.LONG);
String localizedDate = df.format(date)

Date date = new Date();
df = new SimpleDateFormat("HH:mm", Locale.US);
String localizedDate = df.format(date)

Commonly used patterns:

• HH: hour (0-23)
• hh: hour (1-12)
• a: AM/PM marker
• mm: minute (0-59)
• ss: second
• dd: day in month (1-31)
• MM: month
• yyyy: year