Minus duration in Java local datetime from now example

Get current day with LocalDateTime.now() from which you can substract years, weeks, days up to nanos (in the shown example days with minusDays(long days)):

LocalDateTime dateToLookBack = LocalDateTime.now().minusDays(30);

You can achieve the same result by using the minus(TemporalAmount amountToSubtract) method as below

final var dateToLookBackTo = LocalDateTime.now().minus(Duration.ofDays(30));

Reference - https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html

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