Checking if a ZonedDateTime is between a certain time

Question

I am getting the time and date of a location with the code below

        ZoneId zoneId = ZoneId.of("America/New_York");
        ZonedDateTime dateAndTimeForAccount = ZonedDateTime.ofInstant(now, zoneId);
        System.out.println(dateAndTimeForAccount);

How can I check if dateAndTimeForAccount is between 6am to 10am?

Answer 1

One possible solution could be to use a ValueRange.

NOTE: the below solution will result in true for 10:59 (see "Corner case output" at the very bottom:

ZoneId zoneId = ZoneId.of("America/New_York");
ZonedDateTime dateAndTimeForAccount = ZonedDateTime.ofInstant(now, zoneId);
System.out.println(dateAndTimeForAccount);

ValueRange hourRange = ValueRange.of(8, 10);
System.out.printf("is hour (%s) in range [%s] -> %s%n", 
        dateAndTimeForAccount.getHour(),
        hourRange, 
        hourRange.isValidValue(dateAndTimeForAccount.getHour())
);

example output

2017-01-11T07:34:26.932-05:00[America/New_York]
is hour (7) in range [8 - 10] -> false

edit: The snippet guides as an example for the suggested solution. It's not a full solution and as visible in the code it only makes a check on the hour part.

Corner case output: results in true for 10:59:

2017-01-11T10:59:59.999-05:00[America/New_York]
is hour (10) in range [8 - 10] -> true