Convert Minutes to milliseconds Java/android

In Java 8+, use java.time.

java.time.Duration.ofMinutes(15).toMillis();

1 minute = 60000 millisecs.

int minutes = 1;
long milliseconds = minutes * 60000;

TimeUnit.MINUTES.toMillis(yourMinutes)

see TimeUnit javadoc (android)

int minutes = 42;
long millis = minutes * 60 * 1000;