Working with UTC, Zoned Datetime

 






Java ZonedDateTime to Date


https://stackoverflow.com/a/32274725

You can convert ZonedDateTime to an instant, which you can use directly with Date.

Date.from(java.time.ZonedDateTime.now().toInstant());

https://www.utctime.net/

UTC Date and Time in Various Formats

Date Time Format	UTC Date Time Now
UTC	2022-04-05T08:28:33Z
ISO-8601	2022-04-05T08:28:33+0000
RFC 2822	Tue, 05 Apr 2022 08:28:33 +0000
RFC 850	Tuesday, 05-Apr-22 08:28:33 UTC
RFC 1036	Tue, 05 Apr 22 08:28:33 +0000
RFC 1123	Tue, 05 Apr 2022 08:28:33 +0000
RFC 822	Tue, 05 Apr 22 08:28:33 +0000
RFC 3339	2022-04-05T08:28:33+00:00
ATOM	2022-04-05T08:28:33+00:00
COOKIE	Tuesday, 05-Apr-2022 08:28:33 UTC
RSS	Tue, 05 Apr 2022 08:28:33 +0000
W3C	2022-04-05T08:28:33+00:00
Unix Epoch	1649147313
YYYY-DD-MM HH:MM:SS	2022-05-04 08:28:33
YYYY-DD-MM HH:MM:SS am/pm	2022-05-04 08:28:33 AM
DD-MM-YYYY HH:MM:SS	05-04-2022 08:28:33
MM-DD-YYYY HH:MM:SS	04-05-2022 08:28:33

https://stackoverflow.com/a/32886576

( https://stackoverflow.com/questions/27454025/unable-to-obtain-localdatetime-from-temporalaccessor-when-parsing-localdatetime/32886576#32886576 )

Unable to obtain LocalDateTime from TemporalAccessor when parsing LocalDateTime (Java 8)

If you really need to transform a date to a LocalDateTime object, you could use the LocalDate.atStartOfDay(). This will give you a LocalDateTime object at the specified date, having the hour, minute and second fields set to 0:

final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd");
LocalDateTime time = LocalDate.parse("20140218", formatter).atStartOfDay();