Subtracting two date values and returning the different in number of days

Question

Bearing the risk of being redundant, I would like to know how one can subtract 2 date values and store the result which should be in number of days into an integer. I am using Java for this exercise.

Also duplicate of: [Calculate days between two dates in Java 8](http://stackoverflow.com/q/27005861/642706) — Basil Bourque, May 18 '17 at 17:05

ΦXocę 웃 Пepeúpa ツ · Answer 1 · 2017-05-18T09:46:16.927

2

Use LocalDate and Period:

LocalDate d1 = LocalDate.of(2017, 05, 01);
LocalDate d2 = LocalDate.of(2017, 05, 18);


System.out.println(ChronoUnit.DAYS.between(d1, d2));

you can get the actual date using

LocalDate d1 = LocalDate.now()

edited May 18 '17 at 09:46

answered May 18 '17 at 08:16

ΦXocę 웃 Пepeúpa ツ

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Thank you for the help. I would like to know if there is a way of passing the present date into LocalDate.of(). – Abhijeet Mohanty May 18 '17 at 08:21
please see my update! – ΦXocę 웃 Пepeúpa ツ May 18 '17 at 08:23
@ΦXocę웃Пepeúpaツ `Period::getDays` doesn't do what you think it does - your answer is incorrect. For example, `Period.between(LocalDate.of(2015, 1, 1), LocalDate.of(2017, 5, 5)).getDays();` returns 4. – assylias May 18 '17 at 09:37
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thanks, I edited the answer – ΦXocę 웃 Пepeúpa ツ May 18 '17 at 09:46

score 1 · Accepted Answer · answered May 18 '17 at 09:37

1

If you have two LocalDates, you can use:

longs days = ChronoUnit.DAYS.between(date1, date2);

Note that Period::getDays does something different: for a period of one year and one day, Period::getDays will return 1, not 366!

answered May 18 '17 at 09:37

assylias

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Oh! I have not tested for that as my program just takes a difference of a few days. Thanks a ton. – Abhijeet Mohanty May 18 '17 at 09:55

Subtracting two date values and returning the different in number of days

2 Answers2