Date to zoneddatetime java

Java Convert Date to ZonedDateTime

In this Java core tutorial we learn how to convert a java.util.Date object to a java.time.ZonedDateTime object in Java programming language.

How to convert Date to ZonedDateTime in Java

In Java, with a given Date object you can follow these steps to convert it to a ZonedDateTime object.

• Step 1: convert Date object to Instant object using the Date.toInstant() method.
• Step 2: Use the ZonedDateTime.ofInstant(Instant instant, ZoneId zone) method to convert the above Instant object to ZonedDateTime object in system default time zone.

import java.time.Instant; import java.time.ZoneId; import java.time.ZonedDateTime; import java.util.Date; import java.util.TimeZone; public class ConvertDateToZonedDateTimeExample1  public static void main(String. args)  Date date = new Date(); Instant instant = date.toInstant(); ZoneId zoneId = TimeZone.getDefault().toZoneId(); ZonedDateTime zonedDateTime = ZonedDateTime.ofInstant(instant, zoneId); System.out.println("Date: " + date); System.out.println("ZonedDateTime: " + zonedDateTime); > >

Date: Fri May 20 00:21:24 ICT 2022 ZonedDateTime: 2022-05-20T00:21:24.936+07:00[Asia/Bangkok]

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javamultiplex / ConvertDateToZonedDateTime.java

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package com . javamultiplex . datetime ;

import java . time . Instant ;

import java . time . ZoneId ;

import java . time . ZonedDateTime ;

import java . util . Date ;

/**

*

* @author Rohit Agarwal

* @category Date and Time

* @problem How to convert Date to ZonedDateTime?

*

*/

public class ConvertDateToZonedDateTime

public static void main ( String [] args )

Date date = new Date ();

System . out . println ( «Date : » + date );

// Get system default time zone id.

ZoneId defaultZoneId = ZoneId . systemDefault ();

// Convert Date to Instant.

Instant instant = date . toInstant ();

// Instant + default time zone.

ZonedDateTime zonedDateTime = instant . atZone ( defaultZoneId );

System . out . println ( «ZonedDateTime : » + zonedDateTime );

>

>

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Java Convert SQL Date to ZonedDateTime

In Java, with a given SQL Date object we can follow these steps to convert it to a ZonedDateTime object.

• Step 1: use Date.toLocalDate() method to convert the SQL Date object to a LocalDate object.
• Step 2: use LocalDate.atStartOfDay(ZoneId zone) method to convert the LocalDate object from step 1 to a ZonedDateTime object with system default time zone.

import java.sql.Date; import java.time.LocalDate; import java.time.ZoneId; import java.time.ZonedDateTime; public class ConvertSQLDateToZonedDateTimeExample1  public static void main(String. args)  Date date = new Date(System.currentTimeMillis()); // Convert SQL Date object to ZonedDateTime object LocalDate localDate = date.toLocalDate(); ZonedDateTime zonedDateTime = localDate.atStartOfDay(ZoneId.systemDefault()); System.out.println("SQL Date: " + date); System.out.println("ZonedDateTime: " + zonedDateTime); > >

SQL Date: 2022-05-23 ZonedDateTime: 2022-05-23T00:00+07:00[Asia/Bangkok]

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