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1. Get client timezone

Calendar.getInstance().getTimeZone()

2. JPA sql output 

//queryType:TypedQuery 
System.out.println(queryType.unwrap(org.eclipse.persistence.jpa.JpaQuery.class).getDatabaseQuery().getSQLString());


3. LocalDateTime to Date 


//local_time : LocalDateTime
Date.from( local_time.atZone( ZoneId.systemDefault()).toInstant()),


	

	


	



		

		
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