java.time.LocalDate.atTime(LocalTime time) java.time.LocalDate.atTime(int hour, int minute, int second, int nanoOfSecond) java.time.LocalDate.atTime(OffsetTime time) java.time.LocalDate.atTime(LocalTime time) package com.codingdict; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.LocalTime; public class LocalDateDemo { public static void main(String[] args) { LocalDate date = LocalDate.parse("2017-02-03"); System.out.println(date); LocalTime time = LocalTime.parse("10:30:20"); LocalDateTime date1 = date.atTime(time); System.out.println(date1); } } java.time.LocalDate.atTime(int hour, int minute, int second, int nanoOfSecond) java.time.LocalDate.atTime(OffsetTime time)