Number of days between two dates in Joda-Time

Question

How do I find the difference in Days between two Joda-Time DateTime instances? With ‘difference in days’ I mean if start is on Monday and end is on Tuesday I expect a return value of 1 regardless of the hour/minute/seconds of the start and end dates.

Days.daysBetween(start, end).getDays() gives me 0 if start is in the evening and end in the morning.

I'm also having the same issue with other date fields so I was hoping there would be a generic way to 'ignore' the fields of lesser significance.

In other words, the months between Feb and 4 March would also be 1, as would the hours between 14:45 and 15:12 be. However the hour difference between 14:01 and 14:55 would be 0

Answer 1

We can use the Days class with the withTimeAtStartOfDay() method as shown:

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

You can also use LocalDate:

Days.daysBetween(new LocalDate(start), new LocalDate(end)).getDays() 

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