<dependency> <groupId>nayuki</groupId> <artifactId>date4j</artifactId> <version>1.0.0</version> </dependency> DateTime now = DateTime.now(TimeZone.getDefault()); DateTime date1 = DateTime.forDateOnly(2022, 1, 1); DateTime date2 = DateTime.forDateOnly(2022, 1, 2); if (date1.lt(date2)) { } else { } DateTime date = DateTime.forDateOnly(2022, 1, 1);