JAVA

java date minus 1 day

Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
c.add(Calendar.DATE, -1);

date minus date java

// import java.time.*;
Instant start = Instant.now();
// do something
Instant end = Instant.now();
System.out.println("Duration in ms: " + Duration.between(start, end).toMillis());