How to work with ZonedDateTime using API Stream?

I'm trying to pass this method that uses a clasic FOR to a Stream API

public static List<DateBucket> bucketize(ZonedDateTime fromDate,ZonedDateTime toDate,	int bucketSize,	ChronoUnit bucketSizeUnit) {
	  

	List<DateBucket> buckets = new ArrayList<>();
	   boolean reachedDate = false;
	   for (int i = 0; !reachedDate; i++) {
	       ZonedDateTime minDate = fromDate.plus(i * bucketSize, bucketSizeUnit);
	       ZonedDateTime maxDate = fromDate.plus((i + 1) * bucketSize, bucketSizeUnit);
	       reachedDate = toDate.isBefore(maxDate);
	       buckets.add(new DateBucket(minDate.toInstant(), maxDate.toInstant()));
	   }

   return buckets;
}

something like this:

List<DateBucket> buckets = 
	buckets.stream().map(i-> new DateBucket(minDate.toInstant(),maxDate.toInstant()))
					.collect(Collectors.toList());

Thanks

public static List<DateBucket> bucketize(ZonedDateTime fromDate,
		ZonedDateTime toDate, int bucketSize, ChronoUnit bucketSizeUnit) {
	return Stream.iterate(fromDate,
					zdt -> zdt.isBefore(toDate),
					zdt -> zdt.plus(bucketSize, bucketSizeUnit))
			.map(zdt -> new DateBucket(zdt.toInstant(),
					zdt.plus(bucketSize, bucketSizeUnit).toInstant()))
			.collect(Collectors.toList());
}

To try it out:

	ZoneId zone = ZoneId.of("Asia/Urumqi");
	ZonedDateTime from = ZonedDateTime.of(2020, 8, 18, 9, 0, 0, 0, zone);
	ZonedDateTime to = ZonedDateTime.of(2020, 8, 20, 17, 0, 0, 0, zone);
	
	List<DateBucket> buckets = bucketize(from, to, 1, ChronoUnit.DAYS);
	buckets.forEach(System.out::println);

Output:

> 2020-08-18T03:00:00Z - 2020-08-19T03:00:00Z
> 2020-08-19T03:00:00Z - 2020-08-20T03:00:00Z
> 2020-08-20T03:00:00Z - 2020-08-21T03:00:00Z

I’m unsure whether it’s advantageous to use a stream operation here, but as you see, it is certainly possible.

The iterate method that I am using was introduced in Java 9.