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I am trying to convert string from google docs "1/16/2019 11:52:38" to standard system date "2019-01-16 00:00:00". I was able to achieve that using substring method but I am pretty sure there is a faster and smarter way of doing this.

I would really appreciate your help!

My method

private Date getFormattedDate(String timestamp) {
    String dateAsString = timestamp.substringBefore(' ');
    Integer month = Integer.valueOf(dateAsString.substringBefore('/'));
    Integer year =  Integer.valueOf(dateAsString.substringAfterLast('/'));
    Integer day = Integer.valueOf(dateAsString.substringAfter('/').substringBeforeLast('/'));
    return Date.newInstance(year, month, day);
}
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You can use Date.parse method:

String str = '1/16/2019 11:52:38';  
Date dt = Date.parse( str.split(' ')[0] );  
system.debug(' Parsed Date is ' + dt ); 

|DEBUG| Parsed Date is 2019-01-16 00:00:00

Refer Date Class

If you want to change from mm/dd/yyyy to dd/mm/yyyy format, use below approach.

Date dToday = Date.today(); //DEBUG|>>>>2019-01-17 00:00:00
String dateStr = Date.today().format();
DateTime dt = DateTime.newInstance(dToday.year(), dToday.month(),dToday.day());
dateStr = dt.format('dd/MM/yyyy');
System.debug('>>>>' + dateStr); //>>>>17/01/2019
  • This is what I have already tested, it throws an error "Invalid date: 1/15/2019" :( – Tomek Jan 17 at 10:10
  • It works fine for me and given result as 2019-01-15 00:00:00 – Reshma Jan 17 at 10:13
  • May be it won't support in your locale. What is your locale? – Reshma Jan 17 at 10:15
  • That seems to be right, is it possible to just change mm/dd/yyyy to dd/mm/yyyy in apex? – Tomek Jan 17 at 10:46
  • Yes @Tomek . First convert date to datetime and you can use Datetime.format('dd/MM/yyyy') – Reshma Jan 17 at 11:43

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