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53 строки
2.6 KiB
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53 строки
2.6 KiB
Plaintext
2024
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dmdev - Java Date and Time API 0:00 of 32:32
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https://www.youtube.com/watch?v=5QzLsYQRt0I
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2023
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https://jonasg.io/posts/how-to-effectively-test-time-dependent-code/
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2017
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https://codeblog.jonskeet.uk/2017/04/23/all-about-java-util-date/
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2015
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https://codeblog.jonskeet.uk/2015/05/05/common-mistakes-in-datetime-formatting-and-parsing/
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????
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https://www.baeldung.com/category/java/java-dates
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https://www.baeldung.com/java-dates-series
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https://www.baeldung.com/java-8-date-time-intro
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ZonedDateTime.parse("2015-05-03T10:15:30+01:00[Europe/Paris]");
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https://www.baeldung.com/java-convert-epoch-localdate
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https://www.baeldung.com/java-instant-vs-localdatetime
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https://www.baeldung.com/java-localdatetime-zoneddatetime
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https://www.baeldung.com/java-localdate-epoch
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https://www.baeldung.com/java-zone-offset
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https://www.baeldung.com/java-zoneddatetime-offsetdatetime
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https://stackoverflow.com/questions/30234594/whats-the-difference-between-zoneddatetime-and-offsetdatetime
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ZonedDateTime holds 3 parts: LocalDateTime, ZoneId and the resolved ZoneOffset.
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ZoneId determines how and when the offset changes. So, the offset can’t be freely set, as the zone controls which offsets are valid.
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ZonedDateTime.now(ZoneId.of("Europe/Berlin"))
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fully DST-aware
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OffsetDateTime is an immutable representation of a date-time with an offset from UTC/Greenwich
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OffsetDateTime.now(ZoneOffset.of("+02:00"))
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we should always prefer storing OffsetDateTime in the database over the ZonedDateTime,
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as dates with a local time offset always represent the same instants in time.
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https://www.baeldung.com/java-date-to-localdate-and-localdatetime
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There are 2 implementations of ZoneId.
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First, with a fixed offset as compared to GMT/UTC.
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And second, as a geographical region, which has a set of rules to calculate the offset with GMT/UTC.
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ZoneOffset extends ZoneId and defines the fixed offset of the current time-zone with GMT/UTC, such as +02:00.
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ZoneOffset zoneOffset = ZoneId.of("Europe/Berlin").getRules().getOffset(LocalDateTime.now());
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In case a country has 2 different offsets – in summer and winter, there will be 2 different ZoneOffset implementations for the same region,
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hence the need to specify a LocalDateTime
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????
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https://www.baeldung.com/java-combine-local-date-time
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truncate hour
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https://www.baeldung.com/spring-date-parameters
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https://www.baeldung.com/jackson-serialize-dates
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https://medium.com/elca-it/how-to-get-time-zones-right-with-java-8dea13aabe5c
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https://stackoverflow.com/questions/57327134/how-to-search-by-dates-and-times-with-spring-data-jpa
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https://www.baeldung.com/java-check-two-date-ranges-overlap
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