Java Joda-Time中两个日期之间的天数

令人讨厌的是，withTimeAtStartOfDay答案是错误的，但只是偶尔出现。你要：

Days.daysBetween(start.toLocalDate(), end.toLocalDate()).getDays()

事实证明，“midnight/start 的开始时间”有时是指凌晨1点（某些地方以这种方式实现夏令时），而Days.daysBetween无法正确处理。

// 5am on the 20th to 1pm on the 21st, October 2013, BrazilDateTimeZone BRAZIL = DateTimeZone.forID("America/Sao_Paulo");DateTime start = new DateTime(2013, 10, 20, 5, 0, 0, BRAZIL);DateTime end = new DateTime(2013, 10, 21, 13, 0, 0, BRAZIL);System.out.println(daysBetween(start.withTimeAtStartOfDay(),         end.withTimeAtStartOfDay()).getDays());// prints 0System.out.println(daysBetween(start.toLocalDate(),         end.toLocalDate()).getDays());// prints 1

通过走出去

LocalDate