> For the complete documentation index, see [llms.txt](https://jaywin.gitbook.io/leetcode/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jaywin.gitbook.io/leetcode/solutions/1360-number-of-days-between-two-dates.md).

# 1360. Number of Days Between Two Dates

<https://leetcode.com/problems/number-of-days-between-two-dates>

## Description

Write a program to count the number of days between two dates.

The two dates are given as strings, their format is `YYYY-MM-DD` as shown in the examples.

**Example 1:**

```
**Input:** date1 = "2019-06-29", date2 = "2019-06-30"
**Output:** 1
```

**Example 2:**

```
**Input:** date1 = "2020-01-15", date2 = "2019-12-31"
**Output:** 15
```

**Constraints:**

* The given dates are valid dates between the years `1971` and `2100`.

## ac

```java
```