How to get milliseconds using Date and Time classes

Posted on October 5, 2024 
DateTimeFormatter formatter
                    = DateTimeFormatter.ofPattern("dd/MMM/yyyy:HH:mm:ss");
LocalDateTime date = LocalDateTime.parse("30/Jul/2024:00:00:00", formatter);
System.out.printf("%s%n", date);

Prints 2024-07-30T00:00

ZoneId id = ZoneId.systemDefault();
ZonedDateTime zdt = ZonedDateTime.of(date, id);
System.out.println(zdt.toInstant().toEpochMilli());

Prints 2244514800000

LocalDateTime localDateTime = LocalDateTime.parse(date, DateTimeFormatter.ofPattern("dd/MMM/uuuu:H:m:s"));
System.out.println(localDateTime.toInstant(ZoneOffset.UTC).toEpochMilli());

Prints 4567903300000