[OS X TeX] datetime

[Jack Kuipers]

Dear: Whoever, (Knowledgable Ones)
In \documentclass[twosided,12pt]{book} how can I record the date and  
the time.
In \documentstyle ... I would usepackage{datetime} and \now  and \date
I have been unable to find any  package that works with \documentclass 
[...]{...}
			Thanx (in advance),	
				Jack Kuipers
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