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compare datetime

Posted on 2012-03-20
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Last Modified: 2016-02-17
I need to do a datetime comparison that takes a string argument such as 9:00 AM and compares it to the current datetime on the server.  

So, if I wanted to compare 3/20/2012 9:00 AM > 3/20/2010 1:00PM it should be false because 9:00 AM is less than 1:00 PM.

One other issue is the time on the server is GMT and I need to translate that time into Mountain time (Phoenix, Arizona).

I'm posting in the java forum, but I'm writing this code in Apex (Salesforce language), which is a derivative of the Java language and is compiled on a Java App Server.  One issue is Apex does not have the Java class library available, so I have to write this from scratch.

Any help is appreciated.
Thank you.
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Question by:-Dman100-
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sdstuber earned 500 total points
ID: 37744119
>>> 3/20/2012 9:00 AM > 3/20/2010 1:00PM


that is true when you compare them as strings.
either reformat them to be sortable strings (yyyy/mm/dd HH:mi:ss - where HH is 24-hour clock)

or, convert the strings to datetime types
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LVL 74

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by:sdstuber
ID: 37744126
to convert a string to a date try something like this...


Datetime dt = DateTime.parse('3/20/2012 9:00 AM');
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Expert Comment

by:for_yan
ID: 37744148
Java has a lot of functionality associated with dates - if none of it is avaialable in Apex, it is not clear how you can do it
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